A ransomware group calling itself Storm has claimed responsibility for an attack on SITES Medical, according to a listing on the group’s own leak site dated September 1, 2026. This claim has not been independently verified, and SITES Medical has not issued a public confirmation. The claim was identified by security researchers and is tracked by ransomware.live, a platform that monitors ransomware groups’ public leak sites. As with all such postings, the information originates entirely from the criminal group itself and should be treated as an allegation rather than a confirmed fact.
What we know — and don’t
- A group calling itself Storm listed SITES Medical on its leak site with a claimed attack date of September 1, 2026.
- SITES Medical operates in the healthcare sector.
- The specific types of data the group claims to have obtained have not been disclosed by the group and have not been confirmed by SITES Medical or any regulator.
- There is currently no independent confirmation that any data was actually accessed, obtained, or is authentic.
- No official statement from SITES Medical or a regulatory body regarding this claim has been identified at this time.
What should you do if you have an account with this company?
- Change your password for any account associated with SITES Medical, and avoid reusing that password elsewhere.
- Enable two-factor authentication (2FA) wherever it’s offered, particularly on email and any patient portal or healthcare-related accounts.
- Be alert to phishing emails, texts, or calls that reference SITES Medical or claim to be following up on a data incident — attackers often exploit these situations to trick people into giving up credentials or personal information.
- Watch financial and insurance statements for unfamiliar activity, since healthcare-related information can sometimes be used for identity or insurance fraud.
- Consider signing up for identity monitoring, such as a service like Aura or LifeLock, so you receive an alert if your personal information turns up somewhere it shouldn’t.
- Keep records of any communications from SITES Medical about this matter, and check the company’s official website or notices for updates rather than relying solely on third-party reports.
BreachLetter will update this page if SITES Medical confirms this incident, or if it is officially reported to a data protection regulator or other authority.