[Alexey?]

Originally Posted by snakes1100

If you didn't perform the backup, then there is no way to go back.

I wouldn't take your friends assumptions as being correct either.

If you feel that your site is at risk, take further security precautions.

ie...
htaccess protect your admincp & modcp
Install a firewall
Install suhosin
Install modsecurity

Plenty of security solutions to prevent getting hacked.

ok tnx

Originally Posted by Marco van Herwaarden

Your friends are very very wrong.

If you want to use the 3.7 range, then you should at least use the latest stable version: 3.7.5. Several security updates have been released since 3.7.3.

Also there are no known vulnerabilities in 3.8.1 so i don't know why your friends came with this claim (unless they want you to be insecure).

ok i get it
by the way do you know fxp dot co.il?
they are using a 3.7.3 and this is the bigest site in our country i think this is the reason my friends thinik like that..
their security is so strong