Network Security Resources

Network managers have a whole new attack surface to manage: the vast multitude of potential entry points created by social media sites, each one offering new opportunities for malware or information loss.

When it comes to network security, Murphy's Law might read a little differently: If something can leave you vulnerable, it will leave you vulnerable.

While your network security team spends its time worrying about network-based attacks, the number of data breaches chalked up to Web applications continues to grow. Are you fighting yesterday's battles, too?

Insiders -- the people who already have access to your network -- can do a lot more damage than a hacker who's still outside the firewall. Learn ways to minimize your risk from the insider threat.

Automated penetration testing tools are a two edged sword: Learn how to run Metasploit-based Fast-Track on your own network before the black hats do.

With more and more mobile workers accessing your network from outside the perimeter it's time to consider Firefox and these seven add-ons to keep them safe and improve your network security.

Keeping up on your patches is only half the battle. Here are six security sites and mailing lists you should be making part of your efforts to keep up on the fast-moving field of network security.

Rogue access points, weak passwords and poor security standards plague every network administrator. Aircrack-ng can help you sniff out these problems and take care of them, before your network gets taken care of by someone less benign.

You want to restrict traffic and enhance network security, your users want to get at that traffic. Here are a few techniques that demonstrate how tossing up a firewall won't do you any favors.

Are open source network security apps a good choice for your company? A look at the pros and cons. Plus: a handful of apps in the forefront.

You may be an old-school holdout, or you may have inherited a network with NFS/NIS driving some of the file-sharing load. Either way, here's how you can button down these venerable threats to network security.