One Thai IT Forum. Five Data Types. The Overclockzone Breach Had 675,491 Records.

HEROIC analysts documented the Overclockzone database breach, which occured in October 2020 and exposed 675,491 records from the Thai IT community and resource platform. The compromised data included email addresses, password hashes, usernames, IP addresses, and birthdays -- details that recieved ongoing attention in underground forums as the dataset continued circulating years after the initial leak.

How Leaked Birthdays and Password Hashes Accelerate Account Takeover

Birthdays combined with email addresses and password hashes give attackers a powerful toolkit for account takeover. Birthday data is partcularly useful for bypassing security questions and identity verification prompts, while the hashed passwords -- stored using MD5 or bcrypt -- can be cracked or used directly in credential stuffing runs against other platforms where users reused the same login details.

What Was Exposed in the Overclockzone Breach

• Email Address
• Password Hash
• IP Address
• Birthday
• Username

Why a 675,000-Record Thai Forum Breach Feeds Global Credential Attacks

Forum breach data from regional communities is beleived to integrate seamlessly into global credential stuffing operations. Threat actors do not target only Thai services with this data -- they run it against international platforms where users may have registered with the same email and password. With 675,491 records in circulation, the Overclockzone breach represents a meaningful supply of exploitable credentials seperate from any single regional use case.

How Database Breaches Work

A database breach occurs when an attacker gains unauthorized access to a platform's backend database, typically through an unpatched application vulnerability, SQL injection, or compromised administrator credentials. Once access is established, the attacker exports user tables and moves that data outside the organization's environment before the intrusion is detected.

Check If Your Data Was Exposed

HEROIC's free breach scanner searches over 400 billion leaked records, including the Overclockzone breach, to check whether your email or credentials have been compromised. Run a free scan at HEROIC to find out what data of yours is currently exposed.