How can i see if someone else has signed in my Facebook account?

[Mimoza]

security stings doesn't show android system sign ins

[Craig]

why don't you change your password then keep it to yourself and then no one can access your facebook. don't use something anyone can guess

[Felishia]

as Craig says, yes you must change your password and also you can also check whether other systems have been logging into your system

you can find what are active sessions and you can end them

the active sessions are available under security settings

not the exact spot but approximate locations i.e. surrounding ones would be provided and you can make use of it

also remove all recognized devices for a fresh start

do enable notification and device recognition

[Daniel]

The Only Way to See Who Is In your Account is Going to Account Settings And Than To Security Settings And Go to Active Sessions

If you Dont See Any And if you Suspect Someone May Be In your Account Or If you Notice Strange Activity Change your Password

[amit tak]

you can see ip from where your fb account is accessed in security option