Victim Claim
gursoygrup.com.tr
Claimed by
lockbit5
Listed on leak site
01 May 2026
Reported attack date
01 May 2026
Group claims tracked
103
Unverified claim.
This entry reproduces a listing published by the lockbit5 group on its own extortion site.
Attackers routinely exaggerate or fabricate victims. Nothing here confirms that
gursoygrup.com.tr suffered a breach, or what data was actually taken.
About the organisation
Gรผrsoy Grup is a leading company in Turkey with over 30 years of experience, operating in seven sect...
What the listing means
gursoygrup.com.tr appeared on the lockbit5 leak site on 01 May 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 not published new claims in the last 30 days.
Recommended actions
- Treat any unsolicited message referencing gursoygrup.com.tr as suspicious โ leaked data gets weaponised for phishing within days.
- If you hold an account on gursoygrup.com.tr, change that password now, update it anywhere you reused it, and enable two-factor authentication.
- Other Business Services 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 โ check the organisation's own disclosures before acting on it.
Leak-site evidence
Listing URL https://www.ransomware.live/id/Z3Vyc295Z3J1cC5jb20udHJAbG9ja2JpdDU=
Show leak-site screenshot
Captured from the group's extortion site. It may contain the victim's data or the attacker's messaging.
