[RHYSIDA] – Ransomware Victim: Sibbalds

AI Generated Summary of the Ransomware Leak Page

On October 16, 2025, a leak page attributed to the Rhysida ransomware group targets Sibbalds Chartered Accountants, a Derby-based accounting practice in the United Kingdom. The page frames Sibbalds as a victim of a data-exfiltration incident and claims that confidential client and firm information has been stolen and will be offered for sale. The body excerpt describes Sibbalds as providing a broad range of accountancy services to owner-managed businesses across England, listing services such as audit, payroll, bookkeeping, tax planning, and consultancy. Attackers present the stolen material as exclusive data that buyers would own without resale, set a ransom price of 5 BTC, and indicate a seven-day window to bid. The page’s language is consistent with a double-extortion-style tactic that monetizes the breach and threatens public disclosure if demands are not met.

Visual content and post date: The leak page includes three screenshots or images accompanying the post; the images are described only in general terms, with no public detail provided about their contents. The post is dated October 16, 2025, which corresponds to the publish date rather than a confirmed compromise date. The victim remains identified as Sibbalds, while the text embraces a call to action to “Open your wallets” and emphasizes exclusivity for a single buyer, with 5 BTC as the stated price. This presentation illustrates the ongoing threat to professional-services firms from ransomware operators who combine data theft with targeted monetization efforts.