Nihonomaru Data Breach

What happened

In late 2015, the anime community known as Nihonomaru had their vBulletin forum hacked and 1.7 million accounts exposed. The compromised data included email and IP addresses, usernames and salted hashes of passwords.

Exposed data

Recommended actions

• Change your Nihonomaru 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 Nihonomaru — attackers weaponise breach data quickly.
• Check whether your email address appears in this breach on haveibeenpwned.com.