Japanese travel agency H.I.S. reports possible passport data leak

TOKYO - Major Japanese travel agency H.I.S. Co. said Wednesday that passport information for as many as 627 of its customers may have been leaked late last year through unauthorized access to a server of its Thai subsidiary.

H.I.S. Tours Co., the subsidiary, was alerted to the breach by an unauthorized-access detection system on Dec. 11, 2025, and disconnected the relevant server from the network and restricted access.