A threat actor has claimed responsibility for a data breach affecting Appsim.vn, a website and mobile application based in Vietnam. The platform specializes in the buying and selling of attractive phone numbers, reportedly managing an inventory of over 35 million SIM cards.
The actor, who is selling the database, claims the breach includes 1,099,825 rows of user data, totaling 7.4 GB.
The allegedly compromised data includes:
- User ID
- Phone number
- Full name
- Email address
- Device code
- Device type
- IP address
