Prestige confirms roadside-assistance data theft involving up to 5.5 million records
The suspended roadside-assistance system held up to 5.5 million affected records, including duplicates. Exposed data includes contact, vehicle, accident and some bank details, plus three cases of card-number leakage. Assistance continues through alternative procedures. Zurich Japan confirms exposure. BMW Japan is checking its scope.
- Disclosed
- Nov 2, 2026
- Updated Nov 7, 2026
- Severity
- Septic Tank Blew
- No CVE: a breach, not a bug
- Splash zone
- Users of roadside assistance handled by Prestige Core Solution for client companies
- Prestige · data breach · roadside assistance
- In the wild
- Yes
- Prestige confirms unauthorized access and external removal of customer data.
What happened
Prestige International confirms that an intruder accessed its group business system and removed customer information handled by subsidiary Prestige Core Solution (PCS). The affected system receives and arranges roadside assistance for client companies. This is confirmed exfiltration, rather than merely an allegation of an exposed server.
The maximum is roughly 5.5 million records including duplicates; the number of unique individuals remains under review. Fields include names, addresses, telephone numbers, email addresses, vehicle registration/chassis information, accident or breakdown intake information, and some bank-account information. Some partner-company information may also be included and is being checked. No credit-card leakage or resulting secondary misuse had been confirmed as of November 2; the November 6 confirmation below supersedes that card-data assessment.
Misused credentials were invalidated after detection on October 29. Access continued, prompting the October 30 shutdown. The company is investigating cause and scope with external specialists; reporting to Japan’s Personal Information Protection Commission and consultation with police are underway. It plans system changes and stronger monitoring, and will coordinate affected-customer notices with client companies. No initial-access vulnerability, final unique-person count or restoration deadline is disclosed. Roadside-assistance work continues through alternative operations despite the affected system being stopped. The confirmed mass disclosure supports L4.
November 6 scope correction: The November 2 notice had not confirmed credit-card leakage. The second report now confirms three cases of card-number leakage, recorded in some call-intake records and included in exfiltrated information. This does not establish three unique people, a new additive incident total, or exposure of card security codes. Issuers have been notified; customer contact and protective measures will be coordinated with them. The company still reports no confirmed secondary misuse and continues roadside assistance through alternative operations while the affected system is suspended.
November 6 customer notices. BMW Japan and BMW Japan Finance identify PCS as the contractor for their affected roadside-assistance and related operations. Their notice lists possible fields for the supplier’s system overall. The fields and count specific to BMW customers remain under investigation. BMW Japan says it reported to Japan’s Personal Information Protection Commission on November 2. Zurich Japan confirms its customer data was included and limits the affected scope to roadside-assistance cases outsourced to PCS through January 31, 2026. Neither customer notice gives a separate count. BMW’s notice repeats the supplier’s November 2 assessment on cards, when no card leakage had been confirmed. Prestige’s second report confirms three cases across the supplier incident and does not identify the client companies involved.
Crime-scene timeline
Oct 29, 2026
Unauthorized access detected
Prestige invalidates misused credentials and begins responding.
Oct 30, 2026
System stopped after continued access
Roadside-assistance operations continue through alternative processes.
Nov 2, 2026
Company discloses confirmed data theft
Up to roughly 5.5 million records including duplicates; unique individuals and final scope remain under investigation.
Nov 6, 2026
Second report confirms card numbers in three cases
Some call-intake records contained card numbers that were exfiltrated. Issuers have been informed; customer measures are being coordinated. No resulting unauthorized use is confirmed.
Nov 6, 2026
BMW Japan and Zurich Japan publish customer notices
BMW Japan is checking fields and customer counts. Zurich Japan confirms that records from earlier outsourced assistance cases were included.
Who said what
We list each claim and who made it. Primary sources (the vendor, the researcher, the registry) are marked. Where reports disagree, we grade by the worst credible case.
- Prestige International original company notice (Japanese PDF)PrimaryNovember 2 two-page notice confirms exfiltration, maximum duplicated record count, data fields, continued access/system shutdown and alternative roadside operations; final cause and unique-person total remain under investigation.
- Prestige November 6 second report (Japanese original PDF)PrimaryConfirms three cases of card-number leakage from intake records, issuer notifications, customer precautions and continued alternative operations.
- Prestige November 6 second report (official English translation PDF)PrimarySame disclosure, not independent corroboration; Japanese original prevails.
- BMW Japan and BMW Japan Finance November 6 customer noticePrimaryConfirms the intrusion at its roadside-assistance provider, investigation of BMW-specific fields and counts, and its customer contact.
- Zurich Japan November 6 customer noticePrimaryConfirms data from previously outsourced roadside-assistance cases was included and gives the contract cutoff and contact details.