Breach date: 2018-12-13. Added to this index: 2021-09-26. Accounts affected: about 266K. Domain: ajarn.com.
What happened
In September 2021, the Thai-based English language teaching website Ajarn discovered they'd been the victim of a data breach dating back to December 2018. The breach was self-submitted to HIBP and included 266k email addresses, names, genders, phone numbers and other personal information. Hashed passwords were also impacted in the breach.
Breach data sourced from Have I Been Pwned, used under CC BY 4.0. Additional breach metadata provided by XposedOrNot. DataExposed is an independent service and is not affiliated with or endorsed by either.
What was exposed
Dates of birth: Your full birth date, day, month and year, collected at signup for age checks, identity verification, insurance quotes, birthday offers or government services.
Education levels: Your highest qualification, such as high school, a trade certificate, a bachelor's degree or a postgraduate degree, collected by job sites, surveys, dating apps and marketing databases.
Email addresses: The email address you used to register or log in. It is the most common field in breaches because it doubles as your username on most sites.
Genders: The gender or sex recorded on your profile, usually picked from a list at signup, sometimes with a title such as Mr or Ms or a gender identity option beyond male and female.
Geographic locations: A general location recorded on your account, such as a country, state, city, postcode or region, either typed in by you or estimated from your IP address.
Job applications: Applications you sent through job sites or employer portals: CVs, cover letters, work history, education, referees, salary expectations and sometimes right to work documents, ID scans or background check consent forms.
Marital statuses: Your relationship status, such as single, married, de facto, separated, divorced or widowed, collected by insurers, lenders, government forms, dating apps and marketing surveys.
Names: Your first name, surname and sometimes middle name or initials, as you gave them when you signed up. It appears in almost every breach because nearly every account asks for it.
Nationalities: The country of citizenship recorded against your account, collected by airlines, travel sites, visa services, banks, employers and some dating apps.
Passwords: The secret you use to sign in, stored by the breached service either in plain text, in a scrambled form called a hash, or encrypted. How it was stored decides how quickly it can be recovered.
Phone numbers: Your mobile or landline number, collected at signup for contact, delivery updates, marketing and two-factor codes.
Profile photos: The main picture on your account, usually a real photo of your face on dating, professional, social and messaging services.
What to do now
Check whether your own address is in this dataset with the free email breach check.
Change the password on this service and every other site where you used the same password.
Turn on two-factor authentication on your email account first, because it is the reset path for everything else.
Treat calls and messages that quote real details about you as hostile until you verify them another way.
Frequently asked questions
What data was leaked in the Ajarn breach?
The Ajarn breach exposed Dates of birth, Education levels, Email addresses, Genders, Geographic locations, Job applications, Marital statuses, Names, Nationalities, Passwords, Phone numbers, Profile photos. About 266K accounts were affected.
Was I affected by the Ajarn breach?
Run the free email breach check with the address you used on that service. It will tell you whether your address appears in this dataset.
What should I do about the Ajarn breach?
Change the password on that account and everywhere you reused it, then turn on two-factor authentication. Passwords from this breach are traded and tried automatically against other sites.