// CONFIRMED RANSOMWARE ATTACKS · MONTH
Ransomnews has confirmed 78 ransomware attacks in July 2023, each one verified against a public source such as a breach notification, regulatory filing, court record or press report. That is 0.8% of the 9,520 confirmed incidents in the dataset. That compares with 114 in June 2023 and 60 in July 2022. The United States accounts for 39 of them (50%), with victims recorded in 23 countries in total. The most affected sector is government, with 13 confirmed victims (17%). Where the operator is attributed, LockBit leads with 15 confirmed victims. A ransom payment is on the public record in 2 cases and a refusal in 13; the outcome is unrecorded in the remaining 63.
Confirmed ransomware attacks by month, trailing 13 months to July 2023
Every month is a partial count until disclosures stop arriving, which typically takes three to four months. Compare July 2023 with months of the same age rather than with fully matured ones.
| Month | Confirmed attacks |
|---|---|
| July 2022 | 60 |
| August 2022 | 73 |
| September 2022 | 85 |
| October 2022 | 87 |
| November 2022 | 79 |
| December 2022 | 85 |
| January 2023 | 96 |
| February 2023 | 146 |
| March 2023 | 136 |
| April 2023 | 162 |
| May 2023 | 120 |
| June 2023 | 114 |
| July 2023 | 78 |
Which ransomware groups had the most confirmed victims in July 2023
The operator is attributed in 56 of the 78 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 July 2023 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 July 2023
Among the 15 confirmed incidents in July 2023 where the outcome is on the public record, 2 paid and 13 refused, a disclosed payment rate of 13.3%. The remaining 63 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 July 2023 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 |
|---|---|---|---|---|---|---|---|
| July 2023 | McLaren Health Care | Healthcare | Michigan, United States | 2,192,515 | ALPHV/BlackCat | Unknown | therecord.media |
| July 2023 | Alberta Dental Service Corporation | Healthcare | Edmonton, Canada | 1,470,000 | 8Base | Yes | siliconangle.com |
| July 2023 | Prospect Medical Holdings, Inc. | Healthcare | California, United States | 1,309,096 | Rhysida | Unknown | beckershospitalreview.com |
| July 2023 | Panorama Eyecare (Eye Care Center of North Colorado, Denver Eye Surgeons, Eye Clinic & Surgery Center, 20/20 Vision Center) | Healthcare | Colorado, United States | 377,911 | LockBit | Unknown | beckersasc.com |
| July 2023 | Pierce College | Education | Washington, United States | 155,811 | Rhysida | Unknown | thenewstribune.com |
| July 2023 | Estée Lauder | Manufacturing | New York, United States | 150,511 | ALPHV/BlackCat | Unknown | risnews.com |
| July 2023 | Wright, Moore, DeHart, Dupuis & Hutchinson, LLC | Finance | Louisiana, United States | 127,431 | ALPHV/BlackCat | Unknown | ago.vermont.gov |
| July 2023 | United Medical Centers | Healthcare | Texas, United States | 127,157 | LockBit | Unknown | scmagazine.com |
| July 2023 | Valley Mountain Regional Center | Healthcare | California, United States | 126,679 | Karakurt | Unknown | oag.ca.gov |
| July 2023 | Highland Health Systems | Healthcare | Alabama, United States | 83,543 | ALPHV/BlackCat | Unknown | maine.gov |
All confirmed ransomware attacks in July 2023
All 78 of 78 confirmed incidents. Every row links to the public source it was verified against.
| Date | Organisation | Sector | Location | Records | Group | Ransom paid | Source |
|---|---|---|---|---|---|---|---|
| July 2023 | Atlantic Federal Credit Union | Finance | Maine, United States | — | ALPHV/BlackCat | Unknown | web.archive.org |
| July 2023 | Low Keng Huat Limited | Construction | Singapore, Singapore | 1,400 | RansomHouse | Unknown | pdpc.gov.sg |
| July 2023 | Jackson Township | Government | Ohio, United States | — | Donut | Unknown | jacksontwp.com |
| July 2023 | Mairie de Nieuil-sur-Mer | Government | Nieuil-sur-Mer, France | — | LockBit | Unknown | numerama.com |
| July 2023 | Ville d'Agen | Government | Agen, France | — | — | Unknown | numerama.com |
| July 2023 | Sapporo Nihon University (Sapporo Nihon University High School and Sapporo Nihon University Junior High School) | Education | Sapporo, Japan | — | — | Unknown | sapporonichidai.ed.jp |
| July 2023 | Daicel Safety Systems (Thailand) Co., Ltd. | Healthcare | Prachinburi, Thailand | — | — | Unknown | daicel.com |
| July 2023 | Wright, Moore, DeHart, Dupuis & Hutchinson, LLC | Finance | Louisiana, United States | 127,431 | ALPHV/BlackCat | Unknown | ago.vermont.gov |
| July 2023 | Highland Health Systems | Healthcare | Alabama, United States | 83,543 | ALPHV/BlackCat | Unknown | maine.gov |
| July 2023 | Ontario Pork | Food and Beverage | Ontario, Canada | — | 8Base | Unknown | farmtario.com |
| July 2023 | Camino Nuevo Charter Academy | Education | California, United States | 7,916 | Akira | Unknown | oag.ca.gov |
| July 2023 | Valley Mountain Regional Center | Healthcare | California, United States | 126,679 | Karakurt | Unknown | oag.ca.gov |
| July 2023 | Messner Reeves LLP | Legal | Colorado, United States | 57 | LockBit | Unknown | dojmt.gov |
| July 2023 | Campbell Killin Brittan & Ray, LLC | Legal | Colorado, United States | 4,448 | ALPHV/BlackCat | Yes | dojmt.gov |
| July 2023 | Renton School District | Education | Washington, United States | 30,373 | Akira | Unknown | apps.web.maine.gov |
| July 2023 | Superior Communications, Inc. | Manufacturing | California, United States | — | ALPHV/BlackCat | Unknown | oag.ca.gov |
| July 2023 | Prefeitura Municipal de Jacarezinho | Government | Jacarezinho, Brazil | — | — | Unknown | portaltanacidade.com |
| July 2023 | Pierce College | Education | Washington, United States | 155,811 | Rhysida | Unknown | thenewstribune.com |
| July 2023 | ConsensioHealth | Healthcare | Wisconsin, United States | 60,871 | — | Unknown | hipaajournal.com |
| July 2023 | Warrior Met Coal, Inc. | Other | Alabama, United States | 19,794 | — | Unknown | sec.gov |
| July 2023 | Parathon by JDA eHealth Systems | Healthcare | Illinois, United States | — | Akira | Unknown | dojmt.gov |
| July 2023 | Estée Lauder | Manufacturing | New York, United States | 150,511 | ALPHV/BlackCat | Unknown | risnews.com |
| July 2023 | Kenya Bureau of Standards | Government | Nairobi, Kenya | — | Rhysida | Unknown | vellum.co.ke |
| July 2023 | Atlas Technical Consultants | Service | Texas, United States | — | LockBit | Unknown | dojmt.gov |
| July 2023 | Cornerstone Energy Services, Inc. | Service | Massachusetts, United States | 500 | — | Unknown | apps.web.maine.gov |
| July 2023 | Siden & Associates, P.C. | Legal | Massachusetts, United States | 605 | Monti | Unknown | apps.web.maine.gov |
| July 2023 | Chestnut Hill Realty | Service | Massachusetts, United States | 700 | — | Unknown | apps.web.maine.gov |
| July 2023 | Academy of Medicine, Singapore (AMS) | Education | Singapore, Singapore | — | LockBit | Unknown | gutzy.asia |
| July 2023 | Alps Alpine North America, Inc. | Manufacturing | Ohio, United States | 1,039 | BlackByte | Unknown | marketscreener.com |
| July 2023 | McLaren Health Care | Healthcare | Michigan, United States | 2,192,515 | ALPHV/BlackCat | Unknown | therecord.media |
| July 2023 | Batesville Tool & Die, Inc. | Manufacturing | Indiana, United States | 4,549 | Ragnar Locker | Unknown | doj.nh.gov |
| July 2023 | Lower Yukon School District | Education | Alaska, United States | — | NoEscape | No | the74million.org |
| July 2023 | LFC Lycee Franais du Caire | Education | Cairo, Egypt | 0 | LockBit | No | lfcaire.org |
| July 2023 | Ville de Chevilly-Larue | Government | Chevilly-Larue, France | — | NoEscape | No | ville-chevilly-larue.fr |
| July 2023 | Imperial Dade | Transportation | New Jersey, United States | 401 | LockBit | Unknown | apps.web.maine.gov |
| July 2023 | Levare International (Borets) | Manufacturing | Dubai, United Arab Emirates | — | Medusa | No | suspectfile.com |
| July 2023 | Corporación Radio e Televisión de Galicia (CRTVG) | Other | A Coruña, Spain | — | ALPHV/BlackCat | Unknown | nosdiario.gal |
| July 2023 | Aiphone Corporation | Manufacturing | Washington, United States | 553 | Money Message | Unknown | ipvm.com |
| July 2023 | Taubblindendienst e.V. | Other | Radeberg, Germany | — | — | No | saechsische.de |
| July 2023 | Wildeboer Bauteile GmbH | Manufacturing | Weener, Germany | — | — | Unknown | wildeboer.de |
| July 2023 | SoftProject GmbH | Technology | Ettlingen, Germany | — | — | Unknown | softproject.de |
| July 2023 | Danbury Public Schools | Education | Connecticut, United States | 9,607 | 8Base | No | apps.web.maine.gov |
| July 2023 | United Medical Centers | Healthcare | Texas, United States | 127,157 | LockBit | Unknown | scmagazine.com |
| July 2023 | Ohio History Connection (Ohio Historical Society) | Other | Ohio, United States | 7,600 | LockBit | Unknown | news.wosu.org |
| July 2023 | SEIKO NPC Corporation | Manufacturing | Tokyo, Japan | 60,000 | ALPHV/BlackCat | Unknown | cybernews.com |
| July 2023 | Alberta Dental Service Corporation | Healthcare | Edmonton, Canada | 1,470,000 | 8Base | Yes | siliconangle.com |
| July 2023 | Papel Prensa | Manufacturing | Buenos Aires, Argentina | — | Akira | Unknown | laopinionsemanario.com.ar |
| July 2023 | Trinkwasserverband Stader GmbH (TWV) | Utilities | Dollern, Germany | — | LockBit | Unknown | csoonline.com |
| July 2023 | Professional Rodeo Cowboys Association | Other | Colorado, United States | — | — | Unknown | prorodeo.com |
| July 2023 | Prospect Medical Holdings, Inc. | Healthcare | California, United States | 1,309,096 | Rhysida | Unknown | beckershospitalreview.com |
| July 2023 | Tempur Sealy International | Manufacturing | Kentucky, United States | — | ALPHV/BlackCat | Unknown | marketwatch.com |
| July 2023 | St. Landry Parish School Board | Education | Louisiana, United States | 13,500 | Medusa | No | theadvocate.com |
| July 2023 | Panorama Eyecare (Eye Care Center of North Colorado, Denver Eye Surgeons, Eye Clinic & Surgery Center, 20/20 Vision Center) | Healthcare | Colorado, United States | 377,911 | LockBit | Unknown | beckersasc.com |
| July 2023 | Morehead State University | Education | Kentucky, United States | 21 | Akira | Unknown | wmky.org |
| July 2023 | University of the West of Scotland | Education | Paisley, United Kingdom | — | Rhysida | Unknown | news.stv.tv |
| July 2023 | George County | Government | Mississippi, United States | — | — | No | govtech.com |
| July 2023 | Yamaha Canada Music Ltd | Retail | Toronto, Canada | — | Akira/BlackByte | Unknown | ca.yamaha.com |
| July 2023 | Roys of Wroxham | Retail | Norfolk, United Kingdom | — | LockBit | Unknown | edp24.co.uk |
| July 2023 | Belize Electricity Limited (BEL) | Utilities | Belize City, Belize | — | Ragnar Locker | Unknown | amandala.com.bz |
| July 2023 | Academia Institute | Education | Melbourne, Australia | — | LockBit | Unknown | itwire.com |
| July 2023 | Helix | Healthcare | St. Petersburg, Russia | — | — | No | therecord.media |
| July 2023 | ZooTampa at Lowry Park | Other | Florida, United States | — | BlackSuit | Unknown | cyware.com |
| July 2023 | Langlade County | Government | Wisconsin, United States | — | LockBit | Unknown | therecord.media |
| July 2023 | Province de Namur | Government | Namur, Belgium | — | LockBit | Unknown | sudinfo.be |
| July 2023 | Comune di Ferrara | Government | Ferrara, Italy | — | Rhysida | No | estense.com |
| July 2023 | Town of Cornelius | Government | North Carolina, United States | — | — | Unknown | wbtv.com |
| July 2023 | Mercier | Food and Beverage | Baugy, France | — | LockBit | Unknown | lanouvellerepublique.fr |
| July 2023 | COCHA | Other | Santiago, Chile | — | — | No | elmostrador.cl |
| July 2023 | Internet Thailand PLC (INET) | Technology | Bangkok, Thailand | — | — | Unknown | bangkokpost.com |
| July 2023 | City of Hayward | Government | California, United States | 32,433 | — | No | abc7news.com |
| July 2023 | Latvijas Futbola federācijas (LFF) | Other | Riga, Latvia | — | — | No | sportacentrs.com |
| July 2023 | BM Group Polytec S.p.A. | Manufacturing | Borgo Chiese, Italy | — | Rhysida | Unknown | polytec.bmgroup.com |
| July 2023 | Election Commission of Pakistan (ECP) | Government | Islamabad, Pakistan | — | — | Unknown | brecorder.com |
| July 2023 | Atherfield Medical & Skin Cancer Clinic | Healthcare | Yass, Australia | — | Cyclops | Unknown | databreaches.net |
| July 2023 | L'Azienda Ospedaliera Universitaria “Luigi Vanvitelli” | Healthcare | Naples, Italy | — | — | Unknown | redhotcyber.com |
| July 2023 | Nagoya Port | Transportation | Nagoya, Japan | — | — | Unknown | asahi.com |
| July 2023 | Caja Popular Mexicana | Finance | Guanajuato, Mexico | — | ALPHV/BlackCat | Unknown | eleconomista.com.mx |
| July 2023 | CF Assicurazioni SpA | Finance | Rome, Italy | — | ALPHV/BlackCat | Unknown | tuttointermediari.it |
Frequently asked questions
How many ransomware attacks were confirmed in July 2023?
Ransomnews has confirmed 78 ransomware attacks in July 2023, each verified against a public source, against 114 in June 2023 and 60 in July 2022. The true total is higher, because many victims never disclose; confirmed counts are a floor, not a ceiling.
Is the July 2023 count final?
It is as settled as a confirmed count gets. July 2023 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 July 2023?
LockBit, with 15 confirmed victims, followed by ALPHV/BlackCat (12) and Rhysida (6). These are confirmed victims, not leak-site claims, counted among the 56 incidents where the operator is attributed.
Which country had the most confirmed ransomware attacks in July 2023?
The United States, with 39 of the 78 confirmed incidents (50%). France is next with 4. 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 July 2023?
Government, with 13 confirmed incidents (17% of the total). Healthcare follows with 13, then Education with 12.
What share of ransomware victims paid in July 2023?
Among the 15 confirmed incidents in July 2023 with a public outcome, 2 paid and 13 refused, a disclosed payment rate of 13.3%. 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 July 2023 by records exposed?
McLaren Health Care (Michigan, United States, July 2023), with 2,192,515 records exposed according to therecord.media. 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.