Windows 7 keeps being a hot topic since its publication, and it was touted to be a great improvement no Vista, among what security aspect is included.
In order to text that assertion,the Sophos Team installed a full release copy of the new OS on a previously cleaned computer, kept the default values for User Account Control (UAC) and didn’t install any anti-virus software.
Then they proceed to infect the computer with 10 unique samples ofmalware that SophosLabs received last. Unfortunately,the result was not at all good for the users, actually, it is technically a good result for manufacturers of anti-malware software around the world. The result is that only 2 out of 10 failed to operate!The following chart shows how vulnerable Windows7 is to most of the virus!

wind7-infected

The UAC managed to block by itself only on sample, and that is definitely not good enough.

So if you installed Windows 7, remember to useanti-virus software.