Confirmed
HCA Healthcare: files with medical resident data copied
On August 12, 2026, an unauthorised party accessed systems and obtained copies of files containing medical residents’ personal information.
Data breaches
Search incidents by company, country, industry, year and attack method. Review affected data, impact, verification status, company responses and sources.
Confirmed
Fragomen: account compromise led to file copying
As part of a social-engineering campaign, a single user account was remotely accessed and a subset of files was accessed and copied.
Investigating
City of Foster City: files may have been viewed or acquired
Between February 28 and March 25, 2026, an unauthorised third party accessed certain City systems and may have viewed or acquired files.
Investigating
Lennar Mortgage: sensitive data may have been affected after social-engineering intrusion
Between May 26 and June 1, 2026, an unauthorised party used social-engineering tactics to access some systems; certain individuals’ sensitive personal information may have been affected.
Investigating
CareCloud: actor claimed exfiltration from EHR AWS environment; PHI may be affected
Between March 10 and 16, 2026, an unauthorised third party accessed one of CareCloud Health’s AWS environments and claimed to have exfiltrated database data; protected health information may be affected.
Investigating
Station Casinos: personal information may have been accessed
Suspicious network activity was identified on March 5, 2026; on July 10 the investigation determined some personal information may have been accessed by an unauthorised individual.
Confirmed
Catalyst Brands: personal data obtained via HR/payroll vendor servers
Unauthorised access to servers managed by a third party supporting HR and payroll led to names, SSNs, passport numbers and other data being obtained.
Confirmed
DentaQuest: personal and dental/vision health data accessed
On May 20, 2026, DentaQuest discovered unauthorised individuals had accessed data on its network, including personal identification and dental or vision health information; the incident ran May 17–20.
Confirmed
Mercor: data downloaded after malicious LiteLLM versions enabled access
Malware inserted into certain LiteLLM versions enabled an unauthorised actor to access some Mercor systems between March 24 and 30, 2026 and download data.
Investigating
Lennar: sensitive data may have been affected after social-engineering intrusion (March)
Between March 24 and 30, 2026, an unauthorised party used social-engineering tactics to access some systems; sensitive personal information of certain individuals may have been affected.
Confirmed
Advantest America: data extracted from servers
An unauthorised third party accessed systems and extracted data from servers, including personal information of notified individuals.
Confirmed
ETS: California student assessment data accessed and copied via SFTP
Unauthorised activity on an SFTP site used to exchange California statewide assessment data with CDE led to student information, including all students enrolled in the prior three school years, being accessed and copied.
Confirmed
AdaptHealth: data incl. patient information taken after social-engineering attack
On June 5, 2026, an unauthorised third party accessed systems through a social-engineering attack on a single user account and took data including patient information.
Confirmed
Seyfarth Shaw: documents emailed to unauthorised recipient
On August 18, 2026, the firm identified that a small number of documents containing names and SSNs were sent by email to, and acquired by, an unauthorised recipient.
Confirmed
See’s Candies: files taken in ransomware attack and posted on dark web
Unauthorised access between April 11 and 13, 2026 led to files on some servers being encrypted; the actor acquired certain files beforehand and at least some were made available on the dark web.
Investigating
Revolve reports possible card-data acquisition
On September 11, 2026, an unauthorised actor accessed the shopping platform and may have acquired names, addresses, card numbers and expiry dates.
Confirmed
Fox Rothschild: files copied and taken after vishing attack
On May 21, 2026, an employee was targeted by a voice-based social-engineering (“vishing”) attack and certain files were copied and taken.
Investigating
Virta Health: files in legacy repository may have been accessed
Unauthorised activity was found in a data repository separate from the production platform; files were potentially accessed between March 19 and 22, 2026, and personal information may have been exposed.
Investigating
City of San José: employee data on lost USB drive may have been exposed
Possible data leak: On January 12, 2026, the city learned a workforce member had lost a USB drive on January 9, 2026 containing information on current and former employees, possibly including names and SSNs.
Confirmed
Quantum Health: files with insurance and health data acquired
Between May 29 and June 1, 2026, an unauthorised party accessed and acquired files including health-insurance and other information.