Are u Noticing anything Suspicious on ur Facebook Alc, either through ur Wall? Well there are Some Simple Security Settings built into Facebook, Some of these Settings are New and others have been around for sometime.
This Settings Should help u detect if any other person is secretly logging into & usin ur Facebook Account.
FOLLOW THIS STEPS
Visit Facebook.com=> Account=> Account Settings => Account Security.
Here you will see a list of all Computers & Mobile Devices dat have logged into ur Facebook Alc & the Time of Visit.
U can also see d Approximate Geographic Location of d Device, based on d IP Address, dat was used 2 Access ur Facebook Alc.
If U come across an Unknown device /location in d List e.g Maybe u See Mac Computer & you've never used Mac Computer before, Just click on d Corresponding" End Activity " link & it should immediately log out dat person using ur Alc.
NOTE:For Extra Safety, u may also choose 2 Receive email & SMS alerts if someone else tries to log into ur FB Alc 4rm a Previously Unknown Computer or Mobile Phone.
Add me on facebook via: http:/,www.facebook.com/allejouk