EA has begun sending emails out to its customers notifying them that their passwords have been reset.
The move may be a response to the recent LulzSec hack that saw user names and passwords tied to hundreds of thousands of Battlefield Online beta accounts leaked online.
In its email, EA tells customers "changing your password regularly is always helpful to protect your account".
It then provides a link from which you can change your EA Account password.
Over the weekend LulzSec announced it had disbanded, but it appears it has not disappeared.
The hacker group appears to have found a home under the umbrella of Anonymous.