Michael Morris
First Post
Also remember that, barring active X controls and javascript, port 80 doesn't normally let executable code in. Infectious worm attacks (such as MS Blaster) require the use of other ports which firewalls are good for.
Don't understate the value of firewalls. Recently a company in Louisville conducted a test where it connected multiple machines to the internet without a firewall or anti-virus and did nothing with them - just let them idle for a week. The two XP service pack 1 machines where infected within 2 hours and both where serving up spam and acting as zombie computers in 18 hours.
There are still hundreds of thousands of infected XP Sp1 machines out there with worms just itching for new hosts - those worms scan the net constantly looking for victims.
Again, this test was conducted without any user browsing or acting. The machines where simply turned on, their connections to the internet verified, and left alone.
Don't understate the value of firewalls. Recently a company in Louisville conducted a test where it connected multiple machines to the internet without a firewall or anti-virus and did nothing with them - just let them idle for a week. The two XP service pack 1 machines where infected within 2 hours and both where serving up spam and acting as zombie computers in 18 hours.
There are still hundreds of thousands of infected XP Sp1 machines out there with worms just itching for new hosts - those worms scan the net constantly looking for victims.
Again, this test was conducted without any user browsing or acting. The machines where simply turned on, their connections to the internet verified, and left alone.