Japan's Adventure Inc. said on October 9 that its travel comparison and booking site skyticket suffered three unauthorized accesses via different routes, the largest, from October 2 to 4, leaking about 14.64 million customer records including names, birth dates, emails, phone numbers, addresses and about 4.13 million hashed member passwords; it says passport numbers were not leaked [1]. A separate intrusion exploiting a business management system flaw leaked 17,780 records including refund bank details, and an October 16 second report corrected the first, saying leftover server logs exposed card numbers and other data of up to 6,140 skyticket Premium members from February 2017 to June 2018 [1][2]. skyticket members should change their passwords (including reused ones), check bookings and card statements, and beware of emails, texts and calls impersonating the company or banks [1].
Japanese travel booking site skyticket hit by three separate intrusions, exposing about 14.64 million customer records and some old card data
1 min read
- Disclosed
- Oct 9, 2026
- Occurred
- Oct 2, 2026
- Published
- Nov 11, 2026
- Last updated
- Nov 11, 2026
- Scale
- 14,640,000 records[1]
- CVSS basis
- Our assessment
- Technology
- Attack vector
- Impact
- Data type
- Actor type
- Motivation
On this page
30-second summary
What happened
Who is affected
Industries mainly affected: Transportation & logistics, Hospitality & food service
What to do nowOur advice
- skyticket members should change their password, and change it on any other service where the same password is used .
Timeline
Technical details
Remediation
Vendor guidance
- 1Change passwords and check statements mitigate[1]
Change skyticket and any reused passwords, and review bookings and card statements.
References
Official / primary2
- [1]
“対象となるお客様:skyticketにご登録・ご入力いただいたお客様 約1,464万件(このうち、会員様のログインパスワードを含むもの 約413万件)”
- [2]
This site aggregates public information and is not security consulting advice. Test remediation steps before applying.