Sony Online Entertainment's PC portal Station.com, home to games like EverQuest and DC Universe Online, is offline. Station.com's homepage currently reads:
We have had to take the SOE service down temporarily. In the course of our investigation into the intrusion into our systems we have discovered an issue that warrants enough concern for us to take the service down effective immediately. We will provide an update later today (Monday).
It is still confirmed whether this breach is related to the PSN breach or if it is separate breach.
Sony initially stated that an "external intrusion" resulted in the PSN going offline. That intrusion resulted in more than the PSN being unavailable to over 70 million account holders, but also user data being compromised.
According to SOE's comment, an update on this latest development is expected later today.
Station.com - Service Under Maintenance [Station.com - Thanks John!]