All Breaches
December 13, 2018 Verified Sensitive Record Education / Job Board

Ajarn Data Breach

The 2018 Ajarn data incident is a teacher-candidate and profile dataset catalogued as 266,399 accounts with a structured date of December 13, 2018.

266.4 Thousand
Reported Records
12
Data Types
High
Severity
Jul 29, 2026
Last updated

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Exposed Data Types

12
  • Dates of birth
  • Education levels
  • Email addresses
  • Genders
  • Geographic locations
  • Job applications
  • Marital statuses
  • Names
  • Nationalities
  • Passwords with unresolved representation
  • Phone numbers
  • Profile photos

About This Breach

Its twelve reported classes are birth dates, education levels, emails, gender, geographic locations, job applications, marital statuses, names, nationalities, passwords, phones, and profile photos.

The local record measure is 266,376, a difference of 23 from the external account measure. Neither figure means unique people, active candidates, teachers, job applications, or profiles containing every field together. Physical addresses, deliveries, invoices, payments, passports, and government IDs are not among these classes.

A row establishes only actual fields in the dataset. It does not establish identity, an Ajarn account or teacher or candidate status, a particular school, job, application, or visa, education, nationality, gender, or marital status, location, phone, photo, or password ownership, field co-occurrence, discrimination, account takeover, or misuse.

Job-application, demographic, location, phone, photo, and credential associations must remain private. If a password is authenticated and was reused, it should be replaced, and offers, documents, fees, or login requests quoting a correct school or visa context should be checked through an independent official channel.

Verification and editorial method

LeakData compares the incident name, date, affected-record count, and exposed data types with accessible sources. Unverified fields are not presented as facts, and records are updated when new evidence becomes available.

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