What happened?
In December 2021, the online booking service FlexBooker suffered a data breach that exposed 3.7 million accounts. The data included email addresses, names, phone numbers and for a small number of accounts, password hashes and partial credit card data. FlexBooker has identified the breach as originating from a compromised account within their AWS infrastructure. The data was found being actively traded on a popular hacking forum.
When did it happen?
The breach date in the public record is December 23, 2021. The record was added to the catalogue on January 6, 2022 and last updated there on January 6, 2022.
What information was reported as exposed?
- Email addresses
- Names
- Partial credit card data
- Passwords
- Phone numbers
These are incident-level categories. The record does not prove that every category was exposed for every affected person.
Who may be affected?
This record may be relevant to people who had an account or other relationship with FlexBooker or used flexbooker.com around December 23, 2021. A catalogue entry does not establish that every customer was affected or that every listed data category applied to each person. Compare the record with an official notice addressed to you.
What should you do?
Compare the organization, dates, and information categories with any notice you received. Use contact details you independently confirm.
Change exposed or reused passwords, begin with your email account, and turn on multi-factor authentication where available.
Check statements for unfamiliar activity and contact the card issuer or financial institution through an independently verified channel.
Treat unexpected breach follow-ups with caution. Do not use links or phone numbers in a suspicious message; contact the organization directly.
Choose actions that match the information involved. If you find signs that someone is using your identity, the Federal Trade Commission provides a personal recovery plan at IdentityTheft.gov.
Sources and review information
- Have I Been Pwned breach catalogue record ↗
- Federal Trade Commission: What To Do After a Data Breach ↗
- Federal Trade Commission: Credit Freezes and Fraud Alerts ↗
Page reviewed September 14, 2026 by the Data Breach Help Editorial Team. Catalogue details reflect the provider record and may change.