Aug 2026Event location unknownUnidentified OpenAI generative AI service (reported)
A local-government employees' mutual aid association said in a notice dated 4 September 2026 that RIZAP, the company it contracts for specific health guidance, had reported that on 20 August 2026 it emerged that a RIZAP staff member, during data-extraction work, had entered data containing personal information into an external generative AI service that RIZAP did not permit. The association says 726 of its members across 14 branches are covered and lists the data as membership numbers, email addresses, names, dates of birth, sex, some addresses and phone numbers, the type of health guidance and, for members with them, high blood pressure, diabetes or dyslipidaemia. The IHI group health insurance society reported 210 of its members in a 2 September notice that, according to a security news site, names OpenAI as the provider, says the matter came to light through the employee's own report, and says OpenAI answered on 1 September that the data had not been used for model training. RIZAP's own release, as described in an ITmedia column, says the information was uploaded by mistake to a generative AI service the employee used privately, and that the company confirmed no possibility of viewing by third parties other than the service operator or of use in training. Whether the provider's staff could view the data was still being checked when the insurers published.
Contextual tracker case Medium reported severity
AI involvement reported · Causal attribution supported · 3 sources · Added 12/10/2026
23 Sept 2025 to 23 Oct 2025NetherlandsChatGPT (reported)
The municipality of Eindhoven in the Netherlands told its council in an information letter shared on Thursday 18 December 2025 that a sample of staff data traffic from 23 September to 23 October 2025 showed files containing personal data of residents and employees had been sent to public AI websites such as ChatGPT, according to Omroep Brabant and Binnenlands Bestuur. The files included youth-care (Jeugdwet) documents, internal reports and CVs, mostly from departments that provide care and support to residents. According to Omroep Brabant's account of findings by the advisory firm Hooghiemstra & Partners, the youth-care documents held information about the mental and physical health of minor children, and social-support (WMO) documents and applicants' CVs were also entered. The municipality reported the breach to the Dutch Data Protection Authority on 23 October, blocked public AI websites and asked OpenAI to delete the files. The council says the scale cannot be determined because the data was kept for only 30 days, so it cannot inform those affected, and that the risk of misuse is limited but cannot be ruled out. A spokesperson said OpenAI had not yet replied.
Contextual tracker case High reported severity
AI involvement reported · Causal attribution supported · 3 sources, 2 underlying accounts · Added 12/10/2026
29 Apr 2026Event location unknownChatGPT
Community First Health Plans, a nonprofit health plan in San Antonio, Texas, said in a 29 June 2026 release that on the evening of 29 April 2026 one of its employees uploaded a file containing personal information of some members to ChatGPT from a home computer network, circumventing the plan's firewall safeguards and violating its policy. The plan says it does not use ChatGPT and that its systems detected the violation and alerted its IT department. According to the release, the file may have included members' names, addresses, dates of birth, member identification numbers and prescription drug information. The next morning the plan revoked the employee's access, directed and verified deletion of the data from the employee's ChatGPT account, asked OpenAI to delete any related data, and ended its relationship with the employee. It notified affected members and federal and state agencies, offered 12 months of identity monitoring and says it is not aware of any misuse. The release gives no number of affected members.
Contextual tracker case Medium reported severity
AI involvement reported · Causal attribution supported · 1 source · Added 12/10/2026