Which companies were affected by a cyberattack in 2021?

#Date of cyberattackCityOrganization
1January 9, 2021Clearfield PAPennsylvaniaCountry administration
2January 10, 2021TexasMedical group
3January 2021NevadaGambling machines
4January 2021Huntsville ALAlabamaUniversity
5January 2021Sierra Vista AZArizonaEye clinic
6January 18, 2021Fremont NENebraskaUniversity
7January 2021Little Rock ARArkansasHealth insurance
8January 21, 2021Houston TXTexasWaste management
9January 2021ArizonaHealth organization
10February 1, 2021GlenviewIllinoisFertility clinics
11February 2021Le Claire IAIowaCity government
12February 5, 2021Gallup NMNew MexicoHospital
13February 2021San Antonio TXTexasHealthcare service provider
14February 2021Oldsmar FLFloridaWater treatment plant
15February 9, 2021Attleboro MAMassachusettsHospital
16February 2021ColoradoUniversity
17February 14, 2021Wayzata MNMinnesotaRestaurant chain
18February 2021Cincinnati OHOhioGrocery chain
19February 16, 2021Honolulu HIHawaiiPayroll processing company
20February 2021Cleveland OHOhioLaw firm
21February 24, 2021Atlanta GAGeorgiaIT service provider for passenger aviation
22February 26, 2021Kingman AZArizonaCity government
23February 2021Boston MAMassachusettsLaw firm
24February 28, 2021Millersville PAPennsylvaniaUniversity
25March 5, 2021Philadelphia PAPennsylvaniaMental healthcare provider
26March 2021Farmingham MAMassachusettsAudio equipment
27March 2021Troy MIMichiganBank
28March 2021San Mateo CACaliforniaSurveillance cameras
29March 2021Chicago ILIllinoisBrewery
30March 12, 2021Buffalo NYNew YorkSchool district
31March 2021Chicago ILIllinoisInsurance
32March 20, 2021Tempe AZArizonaColleges
33March 20, 2021Paducah KYKentuckyMedia
34March 2021Stanford CACaliforniaUniversity
35April 2021Washington, D.C.Police
36April 2021New York City NYNew YorkMass transit
37April 5, 2021New York City NYNew YorkUnited Nations
38April 2021Livonia MIMichiganHealthcare provider
39April 2021CaliforniaUniversity
40April 2021StockholmMedical software
41April 2021Nashville TNTennesseeBraces
42April 2014Los Angeles CACaliforniaWater utility
43April 2021Mount Desert MEMaineWastewater treatment
44April 2021San Diego CACaliforniaPatient financing
45April 26, 2021Portland OROregonSchool district
46April 29, 2021AlaskaCourt system
47April 29, 2021Madison ALAlabamaSchool district
48May 2021San Diego CACaliforniaHospitals
49May 2021Reading PAPennsylvaniaChemical wholesaler
50May 2021Lisle ILIllinoisTruck manufacturer
51May 2021Albuquerque NMNew MexicoConsulting
52May 3, 2021Berlin NHNew HampshireWaste disposal district
53May 2021AlpharettaGeorgiaPipeline operator
54May 2021Tampa FLFloridaTelecom service provider
55May 11, 2021Andover MAMassachusettsPharmacy service
56May 17, 2021AlaskaDepartment of health
57May 18, 2021Visalia CACaliforniaSchool district
58May 2021Fort Myers FLFloridaCardiology
59May 19, 2021Boca Raton FLFloridaMedical lab
60May 2021Washington, D.C.Service provider
61May 2021Mobile ALAlabamaCounty administration
62May 27, 2021Bridgeport WVWest VirginiaCity government
63May 2021São PauloMeat producer
64May 2021FloridaHospitals
65June 2021Woods Hole MAMassachusettsFerries
66June 6, 2021Visalia CACalifornia
67June 2021San Mateo CACalifornaComputer games
68June 2021Electricity company
69June 2021Monroe MIMichiganSchools
70June 2021Woodridge ILIllinoisKitchen equipment supplier
71June 2021Oak Brook ILIllinoisFast food chain
72June 15, 2021Las Vegas NVNevadaHospital
73June 2021New York City NYNew YorkLegal department of the city
74June 17, 2021Eureka MOMissouri
75June 17, 2021Savannah, Georgia GAGeorgiaHealth system
76June 17, 2021Live Oak TXTexas
77June 24, 2021Burr Ridge ILIllinoisHealth care provider
78June 2021Redmond WAWashingtonSoftware company
79June 2021IT service provider
80July 2, 2021Indianapolis INIndianaDepartment of Health
81July 4, 2021Limestone MEMaineWastewater treatment
82July 4, 2021East Wenatchee WAWashingtonHealth district
83July 5, 2021San José CACaliforniaNot-for-profit organization
84July 2021Houston TXTexasPipeline technology
85July 2021Hartford ALAlabamaElectric utility
86July 10, 2021Joplin MOMissouriCity government
87July 11, 2021Clearfield UTUtahCity government
88July 13, 2021Downers Grove ILIllinoisPhysicians
89July 2021multiple
90July 2021Chicago ILIllinoisCreditor protection organization
91July 19, 2021Seattle WAWashingtonMental health care provider
92July 21, 2021Columbus OHOhioBotanical garden
93July 21, 2021OregonPhysicians
94July 27, 2021Downey CACaliforniaHealthcare provider
95July 2021Aventura FLFloridaFactoring
96July 2021Lewiston MNMinnesotaCity government
97July 2021Dothan ALAlabamaSchool district
98August 1, 2021Saginaw MIMichiganService provider
99August 3, 2021Sioux Falls SDSouth DakotaHealthcare provider
100August 4, 2021Indianapolis INIndianaHospital
101August 5, 2021Providence RIRhode IslandTransit company
102August 8, 2021Marlborough MAMassachusettsFertility clinic
103August 12, 2021Martinez CACaliforniaCounty
104August 15, 2021Marietta OHOhioHealth system
105August 2021Houston TXTexasPort authority
106August 2021Morgantown WVWest VirginiaHealth system
107August 2021TexasPhysicians
108August 16, 2021Bellevue WAWashingtonMobil phone operator
109August 19, 2021IllinoisMedical practices
110August 21, 2021Washington, D.C.State Department
111August 23, 2021Peterborough NHNew HampshireCity government
112August 25, 2021Boston MAMassachusettsLibrary
113August 25, 2021San Antonio TXTexasSchool district
114August 27, 2021Los Angeles CACaliforniaHospital
115August 27, 2021Oakland CACaliforniaChildren's advocacy group
116August 30, 2021Los Angeles CACaliforniaBank
117September 1, 2021Boulder COColoradoUniversity
118September 3, 2021Washington, D.C.University
119September 3, 2021Houston TXTexasLegal services
120September 3, 2021Annapolis MDMarylandHealth system
121September 4, 2021Philadelphia PAPennsylvaniaHealth fund
122September 6, 2021Yonkers NYNew YorkCity hall
123September 7, 2021New Orleans LALouisianaDistrict court
124September 2021Sikeston MOMissouriHealth center
125September 10, 2021Mount Vernon NYNew YorkCity government
126September 10, 2021Charlotte NCNorth CarolinaYouth organization
127September 11, 2021Jefferson City MOMissouriTeachers' pension fund
128September 12, 2021Englewood COColoradoTechnology provider
129September 2021Bellevue WAWashingtonInternet
130September 14, 2021Salina KSKansasHospital
131September 17, 2021Westmoreland KSKansasCountry administration
132September 2021Hailey IDIdahoAdvertising service provider for radio stations
133September 19, 2021Mankato MNMinnesotaAgriculture company
134September 2021IowaAgricultural company
135September 20, 2021Calabasas CACaliforniaReal estate company
136September 21, 2021Berlin NHNew HampshireHealthcare provider
137September 2021Fresno CACaliforniaHealthcare provider
138September 23, 2021Allen TXTexasSchool district
139September 25, 2021Santa Fe NMNew MexicoCasino
140September 2021Raleigh NCNorth CarolinaTelecommunications provider
141September 26, 2021Sebastopol CACaliforniaTea producer
142September 27, 2021Pawcatuck, Stonington CTConnecticutSchool district
143September 28, 2021Cary NCNorth CarolinaSchool district
144September 28, 2021Burnsville MNMinnesotaPawnshop chain
145September 28, 2021Lufkin TXTexasSchool district
146September 29, 2021Canton NCNorth CarolinaPolice
147September 29, 2021Seymour INIndianaHospital
148September 30, 2021Lancaster PAPennsylvaniaMedia company
149October 2, 2021Franklin INIndianaHospital
150October 2, 2021Takoma Park MDMarylandUniversity
151October 3, 2021Lodi CACaliforniaSchool district
152October 3, 2021Mondovi WIWisconsinLogistics company
153October 3, 2021Lincoln NENebraskaMedia- and internet company
154October 4, 2021Walterboro SCSouth CarolinaSchool district
155October 2021Middletown Township NJNew JerseyMunicipality
156October 9, 2021Chicago ILIllinoisCandy manufacturer
157October 12, 2021Center Valley PAPennsylvaniaTechnology company
158October 14, 2021Meridian IDIdahoMass transit company
159October 16, 2021Corry PAPennsylvaniaSchool district
160October 16, 2021Hunt Valley MDMarylandMedia company
161October 17, 2021Los Angeles CACaliforniaHealthcare provider
162October 17, 2021Williston NDNorth DakotaMedical billing
163October 17, 2021Foley ALAlabamaUtility company
164October 19, 2021Fort Lauderdale FLFloridaHealth system
165October 23, 2021Green Bay WIWisconsinDairy
166October 24, 2021Janesville WIWisconsinSchool district
167October 24, 2021Parsons KSKansasHospital
168October 25, 2021Vallejo CACaliforniaCookware supplier
169October 25, 2021Englewood COColoradoMortgage lender
170October 2021Ann Arbor MIMichiganMass transit company
171October 26, 2021Montrose COColoradoHospital
172October 29, 2021St. Cloud MNMinnesotaMental health support
173November 1, 2021Monterey CACaliforniaSchool district
174November 2, 2021Toledo OHOhioLibrary
175November 3, 2021Menlo Park CACaliforniaFinancial portal
176November 5, 2021Hunt Valley, Cockeysville MDMarylandComic book wholesaler
177November 7, 2021Montrose COColoradoElectricity provider
178November 9, 2021Wichita Falls TXTexasClinic
179November 2021Oklahoma City OKOklahomaDNA laboratory
180November 11, 2021Portsmouth OHOhioHospital
181November 11, 2021Atlanta GAGeorgiaBenefit plans
182Oktober/November 2021Altamonte Springs FLFloridaSpecialty Pharmacy
183November 12, 2021Charleston WVWest VirginiaParkways Authority
184November 12, 2021Federal police
185November 14, 2021Quincy CACaliforniaCounty
186November 2021Rockville MDMarylandPharmaceutical company
187November 15, 2021Syracuse NYNew YorkUniversity
188November 16, 2021Oradell NJNew JerseyMedical group
189November 17, 2021Tempe AZArizonaDomain registrar
190November 22, 2021Kalispell MTMontanaHospitals
191November 23, 2021Godfrey ILIllinoisCollege
192November 2021Philadelphia, Pennsylvania PAPennsylvaniaOnline shop
193November 28, 2021Butler PAPennsylvania
194November 30, 2021Harvey ILIllinoisHealthcare provider
195December 1, 2021Hilliard OHOhioSchool management platform
196December 3, 2021Riverhead NYNew YorkSchool district
197December 4, 2021Peabody MAMassachusettsCar dealer
198December 4, 2021Troy MIMichiganBank
199December 5, 2021Baltimore MDMaryland
200December 5, 2021Eldon MOMissouriSchool district
201December 6, 2021Knoxville TNTennesseeCommunity college
202December 6, 2021Shelley IDIdahoSchool district
203December 8, 2021Colchester VTVermontCity government
204December 2021Dallas TXTexasAddiction treatment organization
205December 9, 2021Honolulu HIHawaiiBus company
206December 2021Portland, Oregon OROregonRestaurant and hotel chain
207December 10, 2021San Francisco CACaliforniaFinancial services
208December 11, 2021Lowell MAMassachusettsCloud HR software
209December 12, 2021Richmond VAVirginiaGeneral Assembly
210December 13, 2021Redwood City CACaliforniaPhoto service provider
211December 2021Lincoln ILIllinoisCollege
212December 14, 2021Carthage MOMissouriSchulbezirk
213December 2021Gunnison COColoradoCounty administration
214December 17, 2021Jefferson City MOMissouriHospital
215December 20, 2021New York City NYNew YorkFertility clinic
216December 2021Altoona PAPennsylvaniaSchool district
217December 23, 2021Columbus OHOhioOnline booking system
218December 2021Chicago ILIllinoisPrinting
219December 26, 2021Spokane Valley WAWashingtonMechanical engineering
220December 28, 2021Truth or Consequences NMNew MexicoSchool district
221December 2021Grand Rapids MIMichiganClinic
222December 29, 2021Salisbury NCNorth CarolinaSchool district
More statistics:
Cyberattacks, Hacker attacks, Ransomware attacks

Details, examples and sources

Flag USAJanuary 9, 2021
Hacker attack on Clearfield County administration
Clearfield County - Clearfield, Pennsylvania
Clearfield County is located in Pennsylvania, in the northeastern United States.
https://gantnews.com/2021/01/12/clearfie...
Flag USAJanuary 2021
Data breach at U.S. health insurer in Arkansas
Little Rock, Arkansas (Pulaski County)
A vulnerability in Accellion file transfer software resulted in a data theft at Arkansas Health & Wellness.
https://www.arhealthwellness.com/privacy...
Flag USAFebruary 1, 2021
Unauthorized data access at Illinois fertility clinics
Fertility Centers of Illinois (FCI) - Glenview, Illinois
Potentially 80,000 patient records are affected
https://ocrportal.hhs.gov/ocr/breach/bre...
Flag USAFebruary 9, 2021
Ransomware at hospital in Attleboro, Massachusetts
Sturdy Memorial Hospital - Attleboro, Massachusetts
Sturdy Memorial Hospital was the victim of a ransomware attack and paid a ransom to keep the stolen data from being released.
https://www.hipaajournal.com/ransomware-...
Flag USAFebruary 2021
Data theft and extortion at US university
University of Colorado - Colorado
Through a vulnerability in file transfer software.
https://www.cu.edu/accellion-cyberattack
Flag USAFebruary 14, 2021
Ransomware at US restaurant chain
Carisch, Inc. - Wayzata, Minnesota (Hennepin County)
https://media.dojmt.gov/wp-content/uploa...
Flag USAFebruary 24, 2021
Cyberattack on IT service provider for passenger aviation
SITA Passenger Service System (US) Inc. - Atlanta, Georgia (Fulton County, DeKalb County)
Personal data of passengers of various airlines were stolen, including 4.5 million records of India's Air India.
https://www.sita.aero/pressroom/news-rel...
Flag USAFebruary 26, 2021
Cyberattack on the city government of Kingman, Arizona
Kingman, Arizona (Mohave County)
The city of Kingman has a population of approximately 28,000. Only a few personal data were stolen as a result of the attack. By April, operations had been restored. The method of the intrusion could not be determined.
Flag USAMarch 12, 2021
Ransomware at City of Buffalo School District
City of Buffalo School District - Buffalo, New York (Erie County)
https://apps.web.maine.gov/online/aeview...
Flag USAMarch 20, 2021
Data breach at US media group
Paxton Media Group - Paducah, Kentucky (McCracken County)
https://www.doj.nh.gov/consumer/security...
Flag USAApril 2021
Data theft at the University of California
University of California - California
Through a vulnerability in file transfer software.
https://ucnet.universityofcalifornia.edu...
Flag SwedenApril 2021
Cyber incident at medical technology provider headquartered in Sweden
Elekta - Stockholm
Unauthorized access to cancer registry software in the cloud may have exposed the data of more than 200,000 U.S. patients.
https://www.elekta.com/company/company-u...
Flag USAApril 2021
Cyber attack on US supplier of clear braces
SmileDirectClub - Nashville, Tennessee (Davidson County)
SmileDirectClub, headquartered in Nashville, Tennessee, has 4,000 employees and generated $657 million in revenue in 2020. In an initial assessment, the company expects to lose $10 million to $15 million in revenue due to the disruption in production as a result of the attack. Data and personal information were not leaked, and no ransom was paid.
https://www.sec.gov/Archives/edgar/data/...
Flag USAApril 2021
Cyber attack on wastewater treatment plant in Mount Desert, Maine
Mount Desert, Maine
After ransomware, the office computers were out of service for three days. The treatment plant was not affected. Data was not disclosed, nor was a ransom paid.
Flag USAApril 2021
Compromised emails at patient financing provider
San Diego, California (San Diego County)
An unauthorized bank transfer was detected and prevented. When the incident was analyzed, it was discovered that unknown persons had accessed the company's email accounts through phishing for over 1.5 months. Personal data of potentially 210,000 people was also exposed in the process.
https://info.clearbalance.org/security_i...
https://apps.web.maine.gov/online/aeview...
Flag USAMay 3, 2021
Malware at refuse disposal district in Berlin, New Hampshire
Androscoggin Valley Regional Refuse Disposal District - Berlin, New Hampshire (Coös County)
https://www.doj.nh.gov/consumer/security...
Flag USAMay 2021
Major US telecom service provider notices 5-year hack
Syniverse Corporation - Tampa, Florida
The unauthorized access began in 2016.
https://www.sec.gov/Archives/edgar/data/...
Flag USAMay 2021
Ransomware at cardiology clinics in Florida
Florida Heart Associates - Fort Myers, Florida (Lee County)
Unknown persons had access to the systems for 10 days and crippled the entire system with the help of ransomware. At the end of July, operations are running at 50%.
https://apps.web.maine.gov/online/aeview...
https://www.fox4now.com/news/local-news/...
Flag USAMay 19, 2021
Ransomware at medical lab in Florida
Nationwide Laboratory Services - Boca Raton, Florida
Personal data of potentially 33,000 patients were affected.
https://www.infosecurity-magazine.com/ne...
June 2021
Data theft at major computer games provider
Eletronics Arts - San Mateo, Californa (San Mateo County)
Criminals have stolen large amounts of source code for games from Eletronics Arts and are offering it on the Internet. The attackers boast about how easily they gained access via purchased Slack access tokens and simple social engineering.
https://www.vice.com/en/article/wx5xpx/h...
Flag USAJune 17, 2021
Hacker attack on a school district in Missouri, USA
Rockwood School District - Eureka, Missouri (St. Louis County)
The Rockwood School District's IT systems in Eureka, Missouri, have been the target of a hacking attack.
https://westnewsmagazine.com/2021/07/09/...
Flag USAJune 17, 2021
Ransomware at a health system in Savannah, Georgia
St. Joseph`s/Candler - Savannah, Georgia, Georgia (Chatham County)
St. Joseph`s/Candler operates several hospitals and other facilities in the Savannah region, Georgia (USA). Unknown persons had access to the network since December 18, 2020, and launched a ransomware attack.
https://www.sjchs.org/patient-privacy/po...
Flag USAJune 24, 2021
Possible data breach theft of protected data at health care provider
Metro Infectious Disease Consultants - Burr Ridge, Illinois
Metro Infectious Disease Consultants reports that there was unauthorized access to an email account, and as a result there may have been access to the data of more than 171,000 patients.
Flag USAJune 2021
Customer data stripped from the computer of a support employee of a large IT company
Microsoft - Redmond, Washington
https://msrc-blog.microsoft.com/2021/06/...
Flag USAJuly 11, 2021
Cyberattack on the city administration of Clearfield, Utah
Clearfield, Utah (Davis County)
Ransomware encrypted the data, a ransom of millions was demanded.
https://www.ksl.com/article/50209154/hac...
Flag USAJuly 13, 2021
Cyberattack on Chicago-area physician group
Downers Grove, Illinois
Affected is the DuPage Medical Group (DMG). According to press reports, potentially 600,000 patients are affected by the data theft.
https://www.dupagemedicalgroup.com/notic...
Flag IranJuly 2021
Facebook stops Iran spying action
As part of an espionage operation, the Facebook platform was used to target individuals working in the military, defense and aerospace sectors, mainly in the US. Social engineering, phishing, identity theft, and malware were used.
https://about.fb.com/news/2021/07/taking...
Flag USAJuly 2021
Multi-million dollar cyber fraud at Illinois creditor protection organization
Office of the Special Deputy Receiver (OSD) - Chicago, Illinois
Approximately $4 million was stolen.
https://www.govtech.com/security/cyber-a...
Flag USAJuly 19, 2021
Data breach due to burglary at mental health care provider in Seattle
Samaritan Center of Puget Sound - Seattle, Washington (King County)
https://samaritanps.org/wp-content/uploa...
Flag USAJuly 21, 2021
Cyberattack on group of anesthesiology physicians in Oregon
Oregon Anesthesiology Group, P.C. (OAG) - Oregon
Potentially 750,000 records are affected.
https://www.oaginformation.com/
Flag USAJuly 27, 2021
Unauthorized access at a healthcare provider in California
SuperCare Health - Downey, California
https://supercarehealth.com/supercarepro...
Flag USAJuly 2021
Ransomware at the city government of Lewiston, Minnesota
Lewiston, Minnesota (Winona County)
https://www.lewistonmn.org/news/
Flag USAAugust 8, 2021
Ransomware at fertility clinic in Massachusetts
ReproSource - Marlborough, Massachusetts (Middlesex County)
Data on approximately 350,000 patients may have been disclosed.
https://www.reprosource.com/wp-content/u...
Flag USAAugust 15, 2021
Cyber attack on a health system in Marietta, Ohio.
Memorial Health System - Marietta, Ohio (Washington County)
Memorial Health System is a not-for-profit health system that operates three hospitals and several other facilities in the Marietta area. A cyberattack took place in the early morning hours of Aug. 15.
http://mhsystem.org/cyberattack
Flag USAAugust 2021
Email accounts of a West Virginia health system hacked
Monongalia Health System, Inc. - Morgantown, West Virginia
The intention was to fraudulently divert payments intended for a supplier.
https://www.monhealth.com/Uploads/Public...
Flag USAAugust 2021
Unauthorized access to data from a group of ENT physicians in Texas
Texas ENT - Texas
More than 500,000 records are potentially affected.
Nwp-content/uploads/2021/12/Texas_ENT_Sp...
Flag USAAugust 16, 2021
Hackers offer to buy 100 million customer records of US mobile operator
T-Mobile - Bellevue, Washington (King County)
T-Mobile USA confirms a cyber incident.
https://www.t-mobile.com/news/network/cy...
Flag USAAugust 19, 2021
Unauthorized access to an email account of a group of medical practices in Illinois
Christie Business Holdings Company (Christie Clinic) - Illinois
https://www.christieclinic.com/news/5880...
Flag USAAugust 23, 2021
Peterborough, New Hampshire defrauded of $2.3 million by cybercriminals
Peterborough, New Hampshire (Hillsborough County)
The small town of Peterborough in the northeast of the USA has about 6300 inhabitants. In July and August, it was defrauded of a total of $2.3 million. According to reports, mails with false identities were used to divert upcoming payments to the school district and two contractors to other accounts.
https://www.peterboroughnh.gov/news_deta...
Flag USAAugust 27, 2021
Attack with ransomware on a hospital in California
Barlow Respiratory Hospital - Los Angeles, California
https://www.barlowhospital.org/important...
Flag USAAugust 27, 2021
Data breach at children's advocacy group in California
Seneca Family of Agencies - Oakland, California
https://senecafoa.org/notice-of-data-bre...
Flag USAAugust 30, 2021
Ransomware at a bank in the USA
Pacific City Bank - Los Angeles, California
The attackers had access to certain customer data.
https://oag.ca.gov/system/files/Sample%2...
Flag USASeptember 1, 2021
Hacker attack on the University of Colorado Boulder
University of Colorado Boulder - Boulder, Colorado (Boulder County)
The attack on vulnerability in an Atlassian software leaked personal data of 30,000 former employees and students.
https://www.colorado.edu/today/2021/10/2...
Flag USASeptember 3, 2021
Ransomware at a private university in Washington, D.C.
Howard University - Washington, D.C.
Affected is the Howard University.
https://newsroom.howard.edu/newsroom/art...
Flag USASeptember 3, 2021
Unauthorized access at a Texas legal services company
The Marker Group - Houston, Texas
https://www.marker-group.com/data-event-...
Flag USASeptember 11, 2021
Data breach at Missouri teachers' pension fund
Public School and Education Employee Retirement Systems (PSRS/PEERS) - Jefferson City, Missouri
https://www.ai-cio.com/news/missouri-tea...
Flag USASeptember 12, 2021
Cyber attack on US technology provider
TTEC Holdings, Inc. - Englewood, Colorado (Arapahoe County)
https://www.ttec.com/newsroom/press-rele...
Flag USASeptember 14, 2021
Cyberattack on a hospital in Kansas, USA
Mowery Clinic - Salina, Kansas
https://moweryclinic.com/notice-of-data-...
Flag USASeptember 19, 2021
Ransomware attack on a Minnesota agriculture company
Crystal Valley - Mankato, Minnesota (Blue Earth County, Nicollet County)
https://crystalvalley.coop/about-us/news...
Flag USASeptember 20, 2021
Hacker attack on real estate company in California
Marcus & Millichap, Inc - Calabasas, California
https://www.sec.gov/ix?doc=/Archives/edg...
Flag USASeptember 21, 2021
Ransomware at a healthcare provider in New Hampshire.
Coos County Family Health Services - Berlin, New Hampshire (Coös County)
http://coosfamilyhealth.org/
Flag USASeptember 23, 2021
Cyber attack on school district in Texas
Allen Independent School District (Allen ISD) - Allen, Texas (Collin County)
https://www.nbcdfw.com/news/local/allen-...
Flag USASeptember 28, 2021
Ransomware at school district in Texas
Lufkin Independent School District (ISD) - Lufkin, Texas (Angelina County)
https://www.kltv.com/2021/09/28/lufkin-i...
Flag USASeptember 30, 2021
Ransomware attack on a media company in Pennsylvania
LNP Media Group Inc. - Lancaster, Pennsylvania (Lancaster County)
https://news.yahoo.com/more-learned-lnp-...
Flag USAOctober 2, 2021
Cyber attack on a hospital in Franklin, Indiana
Johnson Memorial Health - Franklin, Indiana (Johnson County)
https://www.johnsonmemorial.org/
Flag USAOctober 2, 2021
Ransomware attack on a university in Maryland, USA
Washington Adventist University (WAU) - Takoma Park, Maryland
https://www.wau.edu/wau-ransomware-attac...
Flag USAOctober 3, 2021
Ransomware at a logistics company in Wisconsin
Marten Transport Ltd. - Mondovi, Wisconsin (Buffalo County)
https://www.sec.gov/ix?doc=/Archives/edg...
Flag USAOctober 4, 2021
Cyber attack on school district in South Carolina
Colleton County School District - Walterboro, South Carolina (Colleton County)
There were 800 computers affected, and the cost to rebuild is estimated at about $191,000.
https://www.live5news.com/2021/10/27/col...
Flag USAOctober 14, 2021
Ransomware at a mass transit company in Idaho
Valley Regional Transit - Meridian, Idaho
https://www.valleyregionaltransit.org/ne...
Flag USAOctober 17, 2021
Malware / Ransomware at Healthcare Provider in Los Angeles
Planned Parenthood Los Angeles (PPLA) - Los Angeles, California
https://www.plannedparenthood.org/planne...
Flag USAOctober 24, 2021
Unauthorized access to data at a Kansas hospital
Labette Health - Parsons, Kansas
https://www.labettehealth.com/about-us/l...
Flag USAOctober 25, 2021
Ransomware at a cookware supplier in the U.S.
Vallejo, California
https://oag.ca.gov/system/files/MCorp%20...
Flag USAOctober 25, 2021
Unauthorized data access at a mortgage lender in the U.S.
Pulte Mortgage - Englewood, Colorado (Arapahoe County)
https://www.jdsupra.com/legalnews/data-b...
Flag USAOctober 2021
Cyberattack on the transit authority of Ann Arbor, Mich.
Ann Arbor Area Transportation Authority 'TheRide' - Ann Arbor, Michigan
https://www.theride.org/about/news/theri...
Flag USAOctober 26, 2021
Unauthorized access to emails at a Colorado hospital
Montrose Regional Health - Montrose, Colorado (Montrose County)
https://montrosehealth.com/blog/notice-o...
Flag USANovember 1, 2021
Unauthorized access at the Monterey Peninsula Unified School District
Monterey Peninsula Unified School District - Monterey, California (Monterey County)
https://oag.ca.gov/system/files/Monterey...
Flag USANovember 5, 2021
Ransomware at a comic book wholesaler in the U.S.
Diamond Comic Distributors, Inc. - Hunt Valley, Cockeysville, Maryland (Baltimore County)
https://ago.vermont.gov/blog/2022/08/25/...
Flag USANovember 7, 2021
Cyberattack on a local electricity provider in Colorado
DMEA - Montrose, Colorado (Montrose County)
https://www.dmea.com/dmea-internal-netwo...
Flag USANovember 11, 2021
Unauthorized access at a benefit plan service provider in the U.S.
Horizon Actuarial Services, LLC - Atlanta, Georgia (Fulton County, DeKalb County)
https://www.horizonactuarial.com/notice-...
Flag USAOktober/November 2021
Unauthorized access to data of a specialty pharmacy
BioPlus Specialty Pharmacy Services, LLC - Altamonte Springs, Florida
https://bioplusrx.com/cyber-incident/
Flag USANovember 14, 2021
Cyber attack on a county in California
Plumas County - Quincy, California (Plumas County)
https://www.plumascounty.us/DocumentCent...
Flag USANovember 16, 2021
Ransomware at a medical group in New Jersey
New Jersey Brain and Spine - Oradell, New Jersey (Bergen County)
https://njbrainspine.com/notice-of-data-...
Flag USANovember 2021
Philadelphia online store operator cheated out of $30,000 in revenue
Ali's Wagon - Philadelphia, Pennsylvania, Pennsylvania
The money was diverted to a bank account of the scammers.
https://6abc.com/cyber-attack-online-the...
Flag USANovember 30, 2021
Ransomware at a healthcare provider in Illinois
Family Christian Health Center (FCHC) - Harvey, Illinois
https://familychc.com/data-breach-caused...
Flag USADecember 4, 2021
Cyberattack on a car dealer in Massachusetts
The Lyon-Waugh Auto Group - Peabody, Massachusetts
https://apps.web.maine.gov/online/aeview...
Flag USADecember 4, 2021
Unauthorized access at a US bank
Flagstar Bank - Troy, Michigan (Oakland County)
Potentially, the information of 1.5 million people is affected.
https://apps.web.maine.gov/online/aeview...
Flag USADecember 6, 2021
Ransomware at a community college in Tennessee
Pellissippi State Community College - Knoxville, Tennessee
https://www.tbr.edu/pellissippi-state-up...
Flag USADecember 10, 2021
Data theft at a U.S. financial services company by a former employee
Block, Inc. - San Francisco, California
https://www.sec.gov/ix?doc=/Archives/edg...
Flag USADecember 2021
Cyberattack on a college in Illinois
Lincoln College - Lincoln, Illinois
The cyberattack contributed to the college's May 2022 closure.
https://lincolncollege.edu/
Flag USADecember 2021
A county in Colorado gets scammed out of about $1 million with emails
Gunnison County - Gunnison, Colorado (Gunnison County)
Of this amount, approximately $340,000 could be retained by the bank.
https://crestedbuttenews.com/2022/08/gun...
Flag USADecember 20, 2021
Ransomware at a fertility clinic in New York
Extend Fertility - New York City, New York
https://extendfertility.com/wp-content/u...
Flag USADecember 2021
Cyber attack on a school district in Pennsylvania
Altoona Area School District (AASD) - Altoona, Pennsylvania (Blair County)
https://www.aasdcat.com/apps/pages/index...
Flag USADecember 2021
Cyber attack on a US printing company
RR Donnelley - Chicago, Illinois
https://www.sec.gov/ix?doc=/Archives/edg...
Flag USADecember 26, 2021
Ransomware at a mechanical engineering company in the USA
Wagstaff, Inc. - Spokane Valley, Washington (Spokane County)
https://media.dojmt.gov/wp-content/uploa...

Further details

How many companies were affected by cyberattacks?

KonBriefing Research counted 222 successful cyberattacks on US companies and organizations for 2021.

When did cyber attacks take place?

For 2021, KonBriefing Research counted the following successful cyberattacks on US companies and organizations: January (9)  •  February (15)  •  March (10)  •  April (13)  •  May (17)  •  June (15)  •  July (18)  •  August (19)  •  September (32)  •  October (24)  •  November (22)  •  December (28)

Which industries were affected by cyberattacks?

For 2021, KonBriefing Research found successful cyberattacks on US companies and organizations of the following industries: Healthcare (63)  •  Public sector (57)  •  Education (32)  •  Finance (15)  •  Utility (11)  •  Universities (11)  •  Transportation (10)  •  Food (8)  •  Fast Moving Consumer Goods (6)  •  Media (6)  •  Service provider (6)  •  IT (5)  •  Legal (5)  •  Technology (5)  •  Telecommunication (4)  •  Agriculture (3)  •  Wholesale (3)  •  Aerospace & Defense (2)  •  Government (2)  •  Entertainment (2)  •  Energy industry (2)  •  Police (2)  •  Retail (2)  •  Automotive (2)  •  Chemical (1)  •  Consumer Goods (1)  •  Mechanical Engineering (1)  •  Online retailer (1)  •  Youth organization (1)  •  Organization (1)  •  Pharmaceutical (1)  •  Politics (1)  •  Real estate (1)  •  Social welfare (1)  •  Sport and leisure (1)  •  Military (1) (Multiple assignments possible).

About KonBriefing.com

KonBriefing.com is an independent researcher and analyst in the field of IT security, information security, risk management and compliance. The company was founded in 2019 and is based in Germany.

About the author

Bert Kondruss
Author:
Bert Kondruss
Founder and managing director of KonBriefing Research

Cyber attacks worldwide

Cyber attacks worldwide
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