Data Breaches

ReliaQuest Confirms ShinyHunters Hack, but Says Impact Was Limited

Cybersecurity firm ReliaQuest has confirmed being targeted by hackers affiliated with the notorious ShinyHunters group, but claims the impact of the attack was limited. ReliaQuest revealed on August 17 in a post on X that it had been tracking a widespread ShinyHunters phishing campaign involving domains with the ‘company.claims’ URL pattern.  The company also warned that the hacker gang has been expanding its social engineering tactics to include legal team impersonation alongside IT and help…

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680,000 Impacted by French Tax Authority Data Breach

France’s Directorate General of Public Finances (DGFiP) has disclosed a data breach impacting approximately 680,000 individuals. The incident was disclosed after a threat actor boasted on a hacking forum about accessing DGFiP’s internal systems and exfiltrating data. According to DGFiP, the threat actor accessed its systems in June and July, and the unauthorized access was suspended immediately upon detection. However, the public tax authority did not discover evidence of data exfiltration at the time. Last…

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311,000 Impacted by Brown Health Medical Group-MA Data Breach

Lifespan Physician Group of Massachusetts, doing business as Brown Health Medical Group-MA, is notifying over 311,000 individuals that their personal, medical, and financial information was stolen in a data breach. The incident occurred in December 2025 at its Hawthorn location. It involved a historic file server, the healthcare organization says in a sample notification letter filed with the Massachusetts Office of Consumer Affairs and Business Regulation. While the practice’s electronic health record system was not…

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CareCloud Data Breach Impacts Over 350,000

Healthcare information technology company CareCloud is notifying at least 350,000 people that their information was stolen in a data breach. The incident involved an electronic health record environment within the CareCloud Health division, which was disrupted on March 16, 2026. CareCloud’s investigation determined that hackers accessed one of its AWS environments between March 10 and March 16, and likely exfiltrated data from it. On June 24, the investigation determined that personal, financial, and medical information…

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Origin Energy Data Breach Affects 900,000 Australians

Australian power company Origin Energy Limited said the recent data breach affects 900,000 current and former customers. Origin Energy, which has roughly 4.8 million customers, is one of Australia’s largest electricity and gas retailers.  The company recently started investigating a cybersecurity incident and determined that threat actors gained access to customer data, including names, dates of birth, phone numbers, addresses, account information, and partial payment card or bank account numbers.  In an update shared on…

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MCBS Data Breach Affects 1.2 Million Individuals

A data breach suffered last year by Atlanta-based medical business management company MCBS (Medical Computer Business Services) affects more than 1.2 million individuals. According to a data breach notification posted on its website, MCBS was targeted by hackers in September 2025.  An investigation showed that attackers had access to its systems between September 22 and September 26, potentially stealing files that contained personal information such as name, address, SSN, date of birth, health insurance information,…

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Suno, Paidwork Data Breaches Affect Tens of Millions of Accounts

Hackers have stolen tens of millions of records from AI music generator Suno and gig-work platform Paidwork, according to data breach notification service Have I Been Pwned (HIBP). Suno was targeted in November 2025, and the intrusion came to light earlier this month, when 404 Media reported that hackers had obtained source code and user data.  The stolen source code revealed that Suno had been scraping music and podcasts from major platforms such as Deezer,…

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In Other News: Iran Tracks US Military Phones, CrashStealer macOS Malware, CVD Blueprint

SecurityWeek’s weekly cybersecurity news roundup offers a concise overview of important developments that may not receive full standalone coverage yet remain relevant to the broader threat landscape. This curated summary highlights key stories across vulnerability disclosures, emerging attack methods, policy updates, industry reports, and other noteworthy events to help readers maintain a well-rounded awareness of the evolving cybersecurity environment. Here are this week’s highlights:  Dutch authorities eye local actors in Odido telecom breach Law enforcement…

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Lessons Learned from CISA’s Recent GitHub Leak

The Cybersecurity and Infrastructure Security Agency (CISA) has issued a postmortem on a recent data leak in which a contractor published dozens of internal CISA credentials — including AWS Govcloud keys — in a public GitHub repository for almost six months before being notified by KrebsOnSecurity. Experts say the gaps identified in the agency’s initial response provide important lessons that all security teams should absorb. On May 15, 2026, the security firm GitGuardian asked for…

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Accenture Confirms Data Breach After Hacker Claims Source Code Theft

Professional services giant Accenture confirmed a data breach after a hacker claimed the theft of internal source code from the company. The incident came to light this week, when a threat actor boasted on the hacker forum PwnForums about compromising Accenture and stealing 35 gigabytes of data. According to the hacker, the information, including Azure access keys and tokens, configuration files, RSA and SSH keys, and source code, was exfiltrated from Accenture earlier this month.…

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