
Organisation: OpenAIIncident date: November 9, 2025Nature of incident: Third-party analytics data breach affecting API usersStatus: ConfirmedReported by: OpenAI and Mixpanel, with independent media confirmation OpenAI has confirmed that a security incident at its analytics provider Mixpanel exposed limited analytics data linked to some users of its API platform. At the same time, OpenAI’s own systems… Continue reading

Unauthorized disclosure of behavioral health PHI Organisation: Shasta County Health and Human Services AgencyIncident date: September 30, 2025Nature of incident: Unauthorized access and data leak (insider incident)Status: ConfirmedReported by: Shasta County (official notice) Shasta County Health and Human Services Agency has disclosed a data breach involving the unauthorized disclosure of protected health information (PHI) for… Continue reading

Organisation: SitusAMCIncident date: November 2024 (public disclosure in 2025)Nature of incident: Unauthorized access to systems holding consumer financial dataStatus: Confirmed breachReported by: Attack claimed on underground forums, followed by formal disclosure SitusAMC, one of the most widely used vendors in the U.S. mortgage and housing-finance ecosystem, has confirmed a data breach after attackers claimed to… Continue reading
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