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Verified breach record

Wongnai Data Breach

Understand what this public breach record reports and choose next steps based on the information involved.

Breach date: October 28, 20203,924,454 affected accounts in the record
01

What happened?

In October 2020, 17 previously undisclosed data breaches appeared for sale including the Thai restaurant, hotel and attraction finding service, Wongnai. The breach exposed almost 4M unique customer records from some time during 2020 along with names, phone numbers, links to social media profiles and passwords stored as MD5 hashes. The data was self-submitted to HIBP by Wongnai.

02

When did it happen?

The breach date in the public record is October 28, 2020. The record was added to the catalogue on November 4, 2020 and last updated there on November 5, 2020.

03

What information was reported as exposed?

  • Dates of birth
  • Email addresses
  • Geographic locations
  • IP addresses
  • Names
  • Passwords
  • Phone numbers
  • Social media profiles

These are incident-level categories. The record does not prove that every category was exposed for every affected person.

04

Who may be affected?

This record may be relevant to people who had an account or other relationship with Wongnai or used wongnai.com around October 28, 2020. 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.

05

What should you do?

Verify whether the notice applies to you

Compare the organization, dates, and information categories with any notice you received. Use contact details you independently confirm.

Secure affected accounts

Change exposed or reused passwords, begin with your email account, and turn on multi-factor authentication where available.

Expect targeted phishing

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

Page reviewed September 14, 2026 by the Data Breach Help Editorial Team. Catalogue details reflect the provider record and may change.