BreachForums Version 5 Data Breach

What happened

In March 2026, a breach of one of the many iterations of the BreachForums hacking forum known as "Version 5" was publicly disclosed. The incident exposed 340k unique email addresses along with usernames and argon2 password hashes.

Exposed data

Recommended actions

• Change your BreachForums Version 5 password immediately, and update it anywhere you reused the same password.
• Enable two-factor authentication on the affected account and on your critical services (email, banking).
• Watch for targeted phishing emails referencing BreachForums Version 5 — attackers weaponise breach data quickly.
• Check whether your email address appears in this breach on haveibeenpwned.com.