Hi Oiram32,
If you've any concerns about your EA account's security or a compromise, I would strongly encourage you to review and reset the security steps for your EA Account, as well as follow the advice in the EA Help article "What to do if your EA Account has been hacked." Then, run through the steps for Steam as well.
An advisor can help make sure the account is secure if there are still any concerns after that point. To reach them:
In the meantime, if there are any other accounts linked to your EA account, it'd be good to update the settings for those accounts also. Examples of accounts that can be linked to an EA Account: Amazon and Twitch, Console accounts (PlayStation, Xbox, Nintendo Switch, etc), mobile accounts (Apple ID, Google Play), and Social Media accounts (Facebook).
- EA_Lanna