Digital Home Advisor

Microsoft on Thursday chalked in four security updates for next week that would fix vulnerabilities in Windows, SQL Server and Exchange Server.

Opera Software patched the newest version of its flagship browser for the first time Wednesday when it released Opera 9.5.1 to fix several flaws.

Only 59.1 percent of people use up-to-date, fully patched Web browsers, putting the remainder at risk from growing threats from diligent hackers, according to a new study published by researchers in Switzerland.

The new version of Kaspersky's security suite, Internet Security 2009, features a novel but simple defense against keylogging malware -- a virtual keyboard.

Writers of a password-stealing Trojan horse program have found that a little patience can lead to a lot of infections.

As a vast flood of new malware threatens to overwhelm antivirus software, security companies have begun changing how their programs protect PCs. To avoid being left in the dust by the crooks, companies plan to turn the tables on them by allowing only known good programs to run.

Like most people visiting this site, you most likely live on the Internet. And that means you need help -- help with your home or business network for accessing the Internet, help with troubleshooting, help with downloading, and with e-mail, instant messaging, and security.

What will happen to my earlier version of Firefox?

Two years ago, GreenBorder, one of the early "sandbox" browsers, received mighty applause from Wall Street Journal tech guru Walt Mossberg. The sandbox browser -- basically, a browser running in a virtual container -- promised to keep nasty code from spilling into a computer's operating system and wreaking havoc.

Whether you're looking for a job, a party or long-lost friends, your ideal online meeting place is out there. We uncover the best social-networking sites on the web.

Are you worried about malware and spyware plaguing your system? I have a cool, free tool that gives you an extra layer of defense when you're Web surfing. I also have two free utilities that can lock up and hide your sensitive folders and keep them from prying eyes. Plus, for readers who didn't like my earlier tip for disabling the Insert key, I offer a nifty program to watch your Insert, Caps Lock, and Num Lock keys.

Howard Schmidt was reluctant to hop on the social networking bandwagon - a byproduct, he says, of the paranoia he internalises as a security professional. Eventually, though, Schmidt - the one-time cybersecurity adviser to President Bush and itinerant CISO turned consultant - decided the positives outweighed the negatives. He joined not just one social network but three: Facebook, LinkedIn and MySpace.

Browse the mobile Web in safety

True or false, the information people find about you on the Web can have a big impact on your life. Here are five techniques to make sure that what people read about you is good (or at least true).