Logged out of mogstation randomly

[Jiraidamsi]

The only two devices I use are my computer and phone, I understand why it logs out on my phone. But my computer will be logged into the page for long periods of time because I'm a little bit worried about my security right now, so i'm just guessing right now that it could be just mogstation logging my account out itself, but my paranoia is thinking what if it really isn't and someone is actually trying to login to my account- Which I can't see because I don't see unsuccessful logins.