Victim Claim
Nihon Kotsu Co., Ltd.
Claimed by
AiLock
Listed on leak site
15 Jul 2026
Reported attack date
15 Jul 2026
Group claims tracked
23
Unverified claim.
This entry reproduces a listing published by the AiLock group on its own extortion site.
Attackers routinely exaggerate or fabricate victims. Nothing here confirms that
Nihon Kotsu Co., Ltd. suffered a breach, or what data was actually taken.
About the organisation
Nihon Kotsu Co., Ltd. is the largest taxi and limousine operator in Japan. For the fiscal year ending May 2025, the company reported an annual consolidated revenue of ¥103.445 billion, with group and partner company sales reaching ¥155.457 billion.
What the listing means
Nihon Kotsu Co., Ltd. appeared on the AiLock leak site on 15 July 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 7 claims in the last 30 days and remains active.
Recommended actions
- Treat any unsolicited message referencing Nihon Kotsu Co., Ltd. as suspicious — leaked data gets weaponised for phishing within days.
- If you hold an account on nihon-kotsu.co.jp, change that password now, update it anywhere you reused it, and enable two-factor authentication.
- Other Transportation/Logistics 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/Tmlob24gS290c3UgQ28uLCBMdGQuQEFpTG9jaw==