Got an achievement on client start

[Abinmorth]

I just got the achievement for having a jailed player die to poison.
I wasn't even in a game. I got the achievement just after logging in.

[MysticMismagius]

You might have gotten the achievement on an earlier browser or mobile session, and not noticed it until it popped on steam. The Steam version calibrates achievements with your linked ToS account on login, so when you log in on Steam, any achievements that you have on your ToS account but not on Steam instantly pop.

[Abinmorth]

hmm no. only playing the steam version.
also I'd remember if someone died to jail to my poison.

[Jerme]

Just to be sure: You are the only one having access to your account, correct?
Do you usually login with username/password when havign the Steamclient started, or mostly with the "login with Steam"-button?