Ciarus
About the organisation
ciarus.de zoominfo.com/c/ciarus/1324145982 Ciarus Technologies is a software development company based in Germany that specializes in custom software development, web and mobile app development, IT outsourcing, and DevOps services. They cater to businesses looking for tailored IT solutions to enhance their competitiveness in the digital landscape. With a focus on exceptional customer service and technical expertise, Ciarus aims to help clients bring their ideas to life through reliable and cost-effective technology
What the listing means
Ciarus appeared on the thegentlemen leak site on 08 April 2026. Groups publish a victim once negotiations stall or as pressure during them, so a listing usually means data was already exfiltrated. This group has published 134 claims in the last 30 days and remains active.
Recommended actions
- Treat any unsolicited message referencing Ciarus as suspicious — leaked data gets weaponised for phishing within days.
- If you hold an account on ciarus.de, change that password now, update it anywhere you reused it, and enable two-factor authentication.
- Other Technology organisations should review this group's known TTPs and validate detection coverage against them.
- Watch for follow-on extortion: stolen data is often re-leaked or resold after the initial listing.
- A leak-site listing is a claim made by the attacker, not a confirmed breach — check the organisation's own disclosures before acting on it.
Leak-site evidence
Listing URL https://www.ransomware.live/id/Q2lhcnVzQHRoZWdlbnRsZW1lbg==