According to ZDNet Google has bought Green Border, a company that specializes in virus protection software and tools. No financial details about the transaction were revealed.

Although the acquisition might not seem very interesting to the unsuspecting eye as it would only indicate the possibility that Google will integrate virus protection in its toolbar or come out with its own virus protection software, looking at exactly what Green Border does makes everything a lot more interesting.

Green Border offers virus protection by isolating each Internet session from the rest of the PC and any earlier Internet sessions. Basically, it offers its virus protection by keeping all of the files of an Internet session in one place, and after the session is over, deleting everything, including cache, temporary files, etc. What this method of virus protection does is virtually eliminate the need for updating for protection against new virus signatures. All files are simply flushed away after each session ends.

Adding this feature into the Google toolbar would have some very interesting effects. Naturally, there would be minor inconveniences such as an erased cache each time a new Internet session is started, but the Green Border method of security management still offers tempting results.