Breach registry
4Chan Data Breach
What was exposed, when it happened, and which databases confirm it.
- accounts
- 220
- Breached
- April 14, 2025
Were you caught in this breach?
Search your email, phone number or username against every record CheckLeaked indexes.
What happened
On April 14, 2025, 4chan experienced a cyber attack that led to the leakage of 220 records containing usernames and emails. The breach involved unauthorized access to administrative panels and tools, exposing personal information related to 4chan's staff, including administrators and moderators. It's believed that outdated and vulnerable software contributed to the compromise of the systems. This incident highlighted significant security weaknesses in the management and control of the forum's infrastructure.
Compromised Info
- username
Attestation
Four independent databases catalog this breach and they do not always agree. Each lane below is one source’s own count.
Sources & Link Methods
- Dehashed
FAQ
What was leaked in the 4Chan breach?
The 4Chan breach exposed: username and email.
When did the 4Chan breach happen?
The 4Chan breach was disclosed on April 14, 2025 and affected 220 records.
Am I affected by the 4Chan breach?
Search your email, phone or username at checkleaked.cc to find out whether your data appears in the 4Chan leak.