Victim Claim
Medical PAY
Claimed by
killsec
Listed on leak site
01 May 2026
Reported attack date
01 May 2026
Group claims tracked
8
Unverified claim.
This entry reproduces a listing published by the killsec group on its own extortion site.
Attackers routinely exaggerate or fabricate victims. Nothing here confirms that
Medical PAY suffered a breach, or what data was actually taken.
About the organisation
Price ??? Disclosures 0/1
What the listing means
Medical PAY appeared on the killsec 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 published 3 claims in the last 30 days and remains active.
Recommended actions
- Treat any unsolicited message referencing Medical PAY as suspicious — leaked data gets weaponised for phishing within days.
- If you hold an account on medical-pay.jp, change that password now, update it anywhere you reused it, and enable two-factor authentication.
- Other Financial 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 — check the organisation's own disclosures before acting on it.
Leak-site evidence
Listing URL https://www.ransomware.live/id/TWVkaWNhbCBQQVlAa2lsbHNlYw==