// CONFIRMED RANSOMWARE ATTACKS · MONTH
Ransomnews has confirmed 89 ransomware attacks in April 2022, each one verified against a public source such as a breach notification, regulatory filing, court record or press report. That is 0.9% of the 9,520 confirmed incidents in the dataset. That compares with 82 in March 2022 and 184 in April 2021. The United States accounts for 37 of them (42%), with victims recorded in 22 countries in total. The most affected sector is government, with 27 confirmed victims (30%). Where the operator is attributed, Conti leads with 16 confirmed victims. A ransom payment is on the public record in 2 cases and a refusal in 30; the outcome is unrecorded in the remaining 57.
Confirmed ransomware attacks by month, trailing 13 months to April 2022
Every month is a partial count until disclosures stop arriving, which typically takes three to four months. Compare April 2022 with months of the same age rather than with fully matured ones.
| Month | Confirmed attacks |
|---|---|
| April 2021 | 184 |
| May 2021 | 169 |
| June 2021 | 145 |
| July 2021 | 106 |
| August 2021 | 84 |
| September 2021 | 91 |
| October 2021 | 117 |
| November 2021 | 79 |
| December 2021 | 97 |
| January 2022 | 89 |
| February 2022 | 77 |
| March 2022 | 82 |
| April 2022 | 89 |
Which ransomware groups had the most confirmed victims in April 2022
The operator is attributed in 55 of the 89 confirmed incidents. Counts are confirmed victims, not leak-site claims, so they run well below the totals the groups publish about themselves. Group names link to the live Ransomtracker profile where one exists.
Most active groups by confirmed victims
Where the confirmed attacks in April 2022 fall
Country shares carry a reporting bias. United States breach-notification law and SEC disclosure rules push far more incidents onto the public record than most jurisdictions, which makes American attacks easier to confirm and inflates the US share of any confirmed dataset.
Most affected countries
Most affected sectors
Ransom payment outcomes in April 2022
Among the 32 confirmed incidents in April 2022 where the outcome is on the public record, 2 paid and 30 refused, a disclosed payment rate of 6.3%. The remaining 57 carry no public statement either way. Victims that pay have every incentive to stay quiet and public bodies are the most likely to announce a refusal, so treat this as the disclosed rate, not the true one. The ransomware payment rate analysis explains how the disclosed rate has moved since 2018 and how it compares with incident-response firm samples.
Largest confirmed ransomware attacks in April 2022 by records exposed
Record counts are recorded only where a named source disclosed them, which is the minority of cases, so this table ranks disclosed impact rather than true impact.
| Date | Organisation | Sector | Location | Records | Group | Ransom paid | Source |
|---|---|---|---|---|---|---|---|
| April 2022 | OneTouchPoint (OTP) | Technology | Wisconsin, United States | 4,112,892 | — | Unknown | oag.ca.gov |
| April 2022 | Practice Resources, LLC | Healthcare | New York, United States | 942,138 | — | Unknown | oag.ca.gov |
| April 2022 | Christus Health | Healthcare | Texas, United States | 842,874 | AvosLocker | Unknown | healthitsecurity.com |
| April 2022 | Yuma Regional Medical Center | Healthcare | Arizona, United States | 738,145 | — | Unknown | hipaajournal.com |
| April 2022 | Maternal & Family Health Services (MFHS) | Healthcare | Pennsylvania, United States | 461,070 | — | Unknown | mfhs.org |
| April 2022 | State Bar Of Georgia | Government | Georgia, United States | 52,159 | BitLocker | No | securityweek.com |
| April 2022 | City of Quincy | Government | Massachusetts, United States | 36,080 | — | Yes | thequincysun.com |
| April 2022 | Public Employees Credit Union | Finance | Texas, United States | 28,606 | AvosLocker | Unknown | doj.nh.gov |
| April 2022 | Gekkeikan Co., Ltd. | Food and Beverage | Fushimi, Japan | 27,715 | — | Unknown | gekkeikan.co.jp |
| April 2022 | Cavender Stores, Ltd. | Retail | Texas, United States | 27,237 | Black Basta | Unknown | mass.gov |
All confirmed ransomware attacks in April 2022
All 89 of 89 confirmed incidents. Every row links to the public source it was verified against.
| Date | Organisation | Sector | Location | Records | Group | Ransom paid | Source |
|---|---|---|---|---|---|---|---|
| April 2022 | Stadt Schriesheim | Government | Schriesheim, Germany | — | LockBit | No | golem.de |
| April 2022 | Serviços Municipalizados de Transportes Urbanos de Coimbra (SMTUC) | Government | Coimbra, Portugal | — | LockBit | No | cnnportugal.iol.pt |
| April 2022 | Câmara Municipal da Moita | Government | Moita, Portugal | — | — | No | cmjornal.pt |
| April 2022 | Polyplastics Asia Pacific Sdn. Bhd. | Manufacturing | Balok, Malaysia | — | — | Unknown | polyplastics-global.com |
| April 2022 | PRGX Global, Inc. | Finance | Georgia, United States | 13,231 | Black Basta | Unknown | maine.gov |
| April 2022 | Prefeitura de Rio Bom | Government | Rio Bom, Brazil | — | — | No | tnonline.uol.com.br |
| April 2022 | PRGX, Inc. | Finance | Georgia, United States | 13,231 | Black Basta | Unknown | oag.ca.gov |
| April 2022 | New Hyde Park-Garden City Park School District | Education | New York, United States | 0 | — | Unknown | brooklyn.news12.com |
| April 2022 | North Merrick Union Free School District | Education | New York, United States | 0 | — | Unknown | brooklyn.news12.com |
| April 2022 | Merrick Union Free School District | Education | New York, United States | 0 | — | Unknown | brooklyn.news12.com |
| April 2022 | Public Employees Credit Union | Finance | Texas, United States | 28,606 | AvosLocker | Unknown | doj.nh.gov |
| April 2022 | Gekkeikan Co., Ltd. | Food and Beverage | Fushimi, Japan | 27,715 | — | Unknown | gekkeikan.co.jp |
| April 2022 | M+R Spedag Group | Transportation | Muttenz, Switzerland | — | BlackByte | Unknown | inside-it.ch |
| April 2022 | Laiteries Réunies de Genève | Food and Beverage | Plan-les-Ouates, Switzerland | — | Black Basta | No | ledauphine.com |
| April 2022 | Carefree of Colorado | Manufacturing | Colorado, United States | 2,612 | — | No | dojmt.gov |
| April 2022 | Transportadora de Gas del Sur | Utilities | Buenos Aires, Argentina | — | ALPHV/BlackCat | Unknown | clarin.com |
| April 2022 | Zito | Other | Pennsylvania, United States | 2,091 | — | Unknown | apps.web.maine.gov |
| April 2022 | Yuma Regional Medical Center | Healthcare | Arizona, United States | 738,145 | — | Unknown | hipaajournal.com |
| April 2022 | Ypsilanti Community Utilities Authority (YCUA) | Government | Michigan, United States | 660 | — | No | mlive.com |
| April 2022 | Westchester County Library System | Government | New York, United States | — | — | Unknown | scmagazine.com |
| April 2022 | Unified Government of Wyandotte County and Kansas City | Government | Kansas, United States | — | — | No | kshb.com |
| April 2022 | NSW Council (unnamed) | Government | Australia | — | — | Unknown | cyber.gov.au |
| April 2022 | Massy Stores | Food and Beverage | Port of Spain, Trinidad and Tobago | — | Hive | Unknown | guardian.co.tt |
| April 2022 | SONAE | Other | Maia, Portugal | — | RansomEXX | Unknown | tek.sapo.pt |
| April 2022 | Carmel College | Education | St Helens, United Kingdom | — | Vice Society | No | sthelensstar.co.uk |
| April 2022 | Fraunhofer-Institut für Mikrostruktur von Werkstoffen und Systemen (IMWS) | Other | Halle, Germany | — | — | No | csoonline.com |
| April 2022 | Perbit | Technology | Altenberge, Germany | — | Clop | No | csoonline.com |
| April 2022 | Gemeente Buren | Government | Buren, Netherlands | — | SunCrypt | No | paudal.com |
| April 2022 | Keisei Construction Co., Ltd | Construction | Chiba, Japan | — | LockBit | Unknown | keisei-const.jp |
| April 2022 | Meiko Trading Co. | Service | Tokyo, Japan | — | — | Unknown | meiko-trading.co.jp |
| April 2022 | Höhere Technische Bundeslehr- und Versuchsanstalt St. Pölten (HTL) | Education | Sankt Pölten, Austria | — | ALPHV/BlackCat | Unknown | heute.at |
| April 2022 | State Bar Of Georgia | Government | Georgia, United States | 52,159 | BitLocker | No | securityweek.com |
| April 2022 | Clestra Hauserman | Manufacturing | Illikirch, France | — | LockBit | Unknown | lemagit.fr |
| April 2022 | Dirección General de Inteligencia (DIGMIN) | Government | Lima, Peru | — | Conti | Unknown | larepublica.pe |
| April 2022 | AHS Group | Transportation | Hamburg, Germany | — | RansomHouse | Unknown | archyworldys.com |
| April 2022 | Oralia | Other | lYON, France | — | Black Basta | Unknown | lemagit.fr |
| April 2022 | Hospital Garcia de Orta (HGO) | Healthcare | Almada, Portugal | — | Hive | Unknown | cnnportugal.iol.pt |
| April 2022 | Perusahaan Gas Negara (PGN) | Government | Jakarta, Indonesia | — | Hive | Unknown | techmonitor.ai |
| April 2022 | Oil India Limited | Government | Duliajan, India | — | — | No | timesnownews.com |
| April 2022 | Deutsche Windtechnik | Utilities | Bremen, Germany | — | — | No | cybernews.com |
| April 2022 | EKZ Bibliotheksservice | Retail | Reutlingen, Germany | — | LockBit | Unknown | bitdefender.com |
| April 2022 | Département de l'Ardèche | Government | Ardèche, France | — | Lockbit | No | francebleu.fr |
| April 2022 | Sede Interuniversitaria de Alajuela (SIUA) | Education | San José, Costa Rica | — | Conti | Unknown | bleepingcomputer.com |
| April 2022 | Instituto de Desarrollo Rural (INDER) | Government | San José, Costa Rica | — | Conti | No | qcostarica.com |
| April 2022 | Radiográfica Costarricense (RACSA) | Government | San José, Costa Rica | — | Conti | No | bleepingcomputer.com |
| April 2022 | Groupement Hospitaliers de Territoire (GHT) Cœur Grand Est | Healthcare | Saint-Dizier, France | — | Industrial Spy | Unknown | lunion.fr |
| April 2022 | Nordex | Manufacturing | Rostock, Germany | — | Conti | Unknown | bleepingcomputer.com |
| April 2022 | Caja Costarricense de Seguro Social (CCSS) | Government | San José, Costa Rica | — | Conti | No | bleepingcomputer.com |
| April 2022 | Instituto Meteorológico Nacional (IMN) | Government | San José, Costa Rica | — | Conti | No | bleepingcomputer.com |
| April 2022 | Panasonic Canada | Manufacturing | Mississauga, Canada | — | Conti | Unknown | mspoweruser.com |
| April 2022 | TrustFord | Retail | Colchester, United Kingdom | — | Conti | Unknown | infosecurity-magazine.com |
| April 2022 | Bet9ja | Other | Lagos, Nigeria | — | ALPHV/BlackCat | Unknown | niyitabiti.net |
| April 2022 | The Works | Retail | Birmingham, United Kingdom | — | — | Unknown | dailymail.co.uk |
| April 2022 | Ministerio de Ciencia, Tecnología y Telecomunicaciones (MICITT) | Government | San José, Costa Rica | — | Conti | No | bleepingcomputer.com |
| April 2022 | Fondo de Desarrollo Social y Asignaciones Familiares (FODESAF) | Government | San José, Costa Rica | — | Conti | No | bleepingcomputer.com |
| April 2022 | Ministerio de Trabajo y Seguridad Social (MTSS) | Government | San José, Costa Rica | — | Conti | No | bleepingcomputer.com |
| April 2022 | Junta Administrativa del Servicio Eléctrico de Cartago (JASEC) | Government | Cartago, Costa Rica | — | Conti | No | therecord.media |
| April 2022 | Ministerio de Hacienda de Costa Rica | Government | San José, Costa Rica | — | Conti | No | redpacketsecurity.com |
| April 2022 | Practice Resources, LLC | Healthcare | New York, United States | 942,138 | — | Unknown | oag.ca.gov |
| April 2022 | Optoma Technology, Inc. | Manufacturing | California, United States | 148 | — | Unknown | jdsupra.com |
| April 2022 | OneTouchPoint (OTP) | Technology | Wisconsin, United States | 4,112,892 | — | Unknown | oag.ca.gov |
| April 2022 | Elgin County | Government | Elgin County, Canada | 330 | Conti | No | databreaches.net |
| April 2022 | McCarter & English LLP | Legal | New Jersey, United States | 1,090 | — | Unknown | apps.web.maine.gov |
| April 2022 | Maternal & Family Health Services (MFHS) | Healthcare | Pennsylvania, United States | 461,070 | — | Unknown | mfhs.org |
| April 2022 | Lower Makefield Township | Government | Pennsylvania, United States | — | — | Unknown | levittownnow.com |
| April 2022 | Lionel Holdings, LLC | Manufacturing | North Carolina, United States | — | — | Unknown | mass.gov |
| April 2022 | Lifespan Services | Healthcare | North Carolina, United States | 8,006 | — | Unknown | hipaajournal.com |
| April 2022 | Inglis Foundation | Healthcare | Pennsylvania, United States | — | — | Unknown | marylandattorneygeneral.gov |
| April 2022 | Les Bureaux de L'epargne | Finance | Paris, France | — | LockBit | Unknown | lemagit.fr |
| April 2022 | Heartland Healthcare Services | Healthcare | Ohio, United States | 2,763 | LockBit | No | app.hacknotice.com |
| April 2022 | ABI (Associazione Bancaria Italiana) | Finance | Rome, Italy | — | Vice Society | No | wired.it |
| April 2022 | Glenn County Office of Education and School Districts | Education | California, United States | — | Quantum | Yes | actionnewsnow.com |
| April 2022 | Professional Account Management | Finance | Guaynabo, Puerto Rico | — | — | Unknown | bnamericas.com |
| April 2022 | Secretaria de Estado de Fazenda do Rio de Janeiro (Sefaz RJ) | Government | Rio de Janeiro, Brazil | — | LockBit | Unknown | therecord.media |
| April 2022 | Florida International University | Education | Florida, United States | — | ALPHV/BlackCat | Unknown | therecord.media |
| April 2022 | Dynamo Software | Technology | Massachusetts, United States | 245 | — | Unknown | mass.gov |
| April 2022 | ASP Messina | Healthcare | Messina, Italy | — | LockBit | Unknown | cybersecurity360.it |
| April 2022 | Compressed Gas Association | Manufacturing | Virginia, United States | 71 | — | Unknown | marylandattorneygeneral.gov |
| April 2022 | City of Quincy | Government | Massachusetts, United States | 36,080 | — | Yes | thequincysun.com |
| April 2022 | Christus Health | Healthcare | Texas, United States | 842,874 | AvosLocker | Unknown | healthitsecurity.com |
| April 2022 | Aoyama Hospital | Healthcare | Fujiidera, Japan | — | — | Unknown | www3.nhk.or.jp |
| April 2022 | Central Products, LLC dba Central Restaurant Products | Retail | Indiana, United States | — | Conti | Unknown | mass.gov |
| April 2022 | Cavender Stores, Ltd. | Retail | Texas, United States | 27,237 | Black Basta | Unknown | mass.gov |
| April 2022 | Blume Global, Inc. | Technology | California, United States | 205 | AvosLocker | Unknown | apps.web.maine.gov |
| April 2022 | Becker Law Office | Legal | Kentucky, United States | — | LockBit | No | eu.courier-journal.com |
| April 2022 | Austin Peay State University | Education | Tennessee, United States | — | — | No | wkrn.com |
| April 2022 | Arndt Electronics d/b/a Jameco Electronics | Retail | California, United States | — | Black Basta | Unknown | oag.ca.gov |
| April 2022 | American Technologies, LLC d/b/a 888VoIP | Utilities | New York, United States | — | Clop | Unknown | marylandattorneygeneral.gov |
| April 2022 | American Dental Association (ADA) | Healthcare | Illinois, United States | 459 | Black Basta | Unknown | bleepingcomputer.com |
Frequently asked questions
How many ransomware attacks were confirmed in April 2022?
Ransomnews has confirmed 89 ransomware attacks in April 2022, each verified against a public source, against 82 in March 2022 and 184 in April 2021. The true total is higher, because many victims never disclose; confirmed counts are a floor, not a ceiling.
Is the April 2022 count final?
It is as settled as a confirmed count gets. April 2022 ended more than four months before the latest database refresh, so most late disclosures have arrived, though a confirmation can still be added whenever a new public source surfaces. The figure is recalculated from the live database on every load.
Which ransomware group had the most confirmed victims in April 2022?
Conti, with 16 confirmed victims, followed by LockBit (11) and Black Basta (7). These are confirmed victims, not leak-site claims, counted among the 55 incidents where the operator is attributed.
Which country had the most confirmed ransomware attacks in April 2022?
The United States, with 37 of the 89 confirmed incidents (42%). Costa Rica is next with 10. Part of the gap is exposure and part is reporting: US breach-notification and SEC disclosure rules put more incidents on the public record than most jurisdictions.
Which sector was hit most by ransomware in April 2022?
Government, with 27 confirmed incidents (30% of the total). Healthcare follows with 12, then Education with 9.
What share of ransomware victims paid in April 2022?
Among the 32 confirmed incidents in April 2022 with a public outcome, 2 paid and 30 refused, a disclosed payment rate of 6.3%. Most victims never state whether they paid, and those who pay have the least reason to say so, so the disclosed rate understates real payment behaviour. The payment rate analysis tracks this figure since 2018.
What was the largest ransomware attack of April 2022 by records exposed?
OneTouchPoint (OTP) (Wisconsin, United States, April 2022), with 4,112,892 records exposed according to oag.ca.gov. Record counts exist only where a source disclosed them, so this ranks disclosed impact.
How to read this page. Every incident counted here was verified by Ransomnews against at least one public source. Leak-site listings alone do not qualify, because operators inflate, duplicate and occasionally fabricate claims, so these totals are a defensible floor rather than a full census. Records exposed and ransom outcomes appear only where a named source disclosed them. The page is regenerated from the live database, which refreshes weekly. Cite as: Ransomnews Confirmed Ransomware Attacks Dataset, ransomnews.com, with a link to this page. Bulk access and methodology questions: [email protected]. See also the monthly ransomware statistics and the Ransomtracker.