[ Ransomware claim · umbra · 7 Oct 2026 ]
Tharisa
The ransomware group umbra named Tharisa (South Africa) on its leak site on 7 Oct 2026. This is the group's own claim: it has not been verified by Cyfenced or Ransomware.live, and some claims turn out to be exaggerated, recycled or false.
[ Status ]Has the attack been confirmed?
We have found no statement from Tharisa and no press report of an attack so far. Until the organisation says something, treat the listing as an unproven claim, but stay alert to the phishing such claims are used for.
[ Impact ]Who could be affected
Production stops ripple down the supply chain to customers waiting for parts and products, and groups often take design files and supplier contracts.
[ The attacker ]About umbra
umbra has claimed 10 organisations in the last 30 days, most in Egypt, India and Brazil, and mostly in education, technology and manufacturing.
Other organisations umbra has named
- Egypt
- Brazil
- India
- India
- Egypt
[ What to do ]If you are a customer, partner or neighbour
- Be wary of emails, calls and texts that mention the organisation, especially ones asking you to pay, log in or open an attachment. Criminals use leak-site claims to make phishing believable.
- Check announcements on the organisation's own website or official channels, not on social media reposts.
- If you share accounts or systems with the organisation, change those passwords and check for unusual logins.
- Never visit leak sites or download files claimed to come from the attack: they can contain malware, and handling stolen personal data can be illegal.
[ Similar claims ]Other manufacturing organisations in South Africa
- deadlock