To check if ur Facebook account is hacked.
Type @[4:0] in the comments, if it says Mark
Zuckerberg, it means your account is not hacked. but
If not then you need to change your settings and password
Remember to use the correct brackets [ ] and there
shouldn't be any space between the texts.
goodluck

K
Tnks

trippleKAY:
To check if ur Facebook account is hacked.
Type @[4:0] in the comments, if it says Mark
Zuckerberg, it means your account is not hacked. but
If not then you need to change your settings and password
Remember to use the correct brackets [ ] and there
shouldn't be any space between the texts.
goodluck

Stop misleading unsavvy poeple

http://www.thatsnonsense.com/the-40-in-comments-showing-mark-zuckerberg-messages/

"According to an image on Facebook, typing in @[4:0] in the comments section on any photo on Facebook should change to the name ‘Mark Zuckerberg’. If so, then your Facebook account has not been hacked, apparently.

Well, that’s a little misleading. It’s got nothing to do with “hacking” or any other type of online maliciousness, and the explanation is much more innocent. See the full message below."