On December 16, we were made aware that someone had recently gained unauthorized access to a database from forum.ethereum.org. We immediately launched a thorough investigation to determine the origin, nature, and scope of this incident. Here is what we know:

We are taking the following steps:

If you were affected by the attack we recommend you do the following:

Additionally, we recommend this excellent blog post by Kraken that provides useful information about how to protect against these types of attacks.

We deeply regret that this incident occurred and are working diligently internally, as well as with external partners to address the incident.

Questions can be directed to security@ethereum.org.