Exe Files can send through the face book message tab

Big.... Big Security Hole in Face Book
Today i try to check messages in my fb account, i found one of big security issue in fb, i send the message to my friend with ".exe" attachment the it's say's, cannot send this file type. then i archive the ".exe" files and try to send ,it doesn't show any other error messages, that message has been sent to the particular person.
i found we can send exe file through fb like this. so i say, this is a very big issue, how it will be a big issue. I explain that as video demo here.

if we can send the exe files by like this, we can send "viruses" or "key logger" through fb, then we can easily hack others fb accounts also.....

Note:
don't try like this in your pc or friend pc without their permission


Video demo

Part -01

Exe file send by facebook - Par01 from shangar on Vimeo.

Part -02


Part - 03