A new version of the Bagle computer virus started spreading on Monday among PCs connected to the Internet, and antivirus companies warned that more variants are sure to come.
A mass-mailing virus quickly spread through the Internet on Monday, compromising computers so that they attack the SCO Group's Web server with a flood of data on Feb. 1, according to antivirus companies.
A variant of the MyDoom virus has started spreading, albeit slowly, and security experts expect it to target the main Web site of the music industry.
A computer virus that camouflages itself as a message from PayPal has started spreading among home users, antivirus companies said.
The second version of a two-day-old virus, NetSky, has started spreading more successfully than its parent, antivirus researchers said on Wednesday.
Microsoft will work with law enforcement to track down writers of worms, viruses and other malicious code, and is ponying up US$5 million to fund the search.
Microsoft has been waiting for security researchers to say that its Windows operating system has a lower total cost of ownership. One finally has, but that's not good news.
A vulnerability in all versions of Windows could allow attackers to use a malicious Web site or HTML e-mail message to trap victims and take control of their PCs, warned Microsoft.
A worm that takes advantage of what some security experts describe as the most widespread Windows flaw ever has started spreading, while new analysis has uncovered a time bomb in the worm's code poised to unleash a furious denial of service attack at Microsoft itself.
Problems, delays dominate headlines; CNET expert offers advice for home users.
Problems, delays dominate headlines; CNET expert offers advice for home users.
Microsoft releases a cumulative patch for Internet Explorer, plugging a security hole that had been used by Trojan horse program QHosts to compromise consumers' PCs.
Conceding that its strategy of patching Windows holes as they emerge has not worked, Microsoft plans next week to outline a new security effort focused on what the company calls "securing the perimeter," a company executive said.
We recommend installing Windows XP SP2 but only after Microsoft has had a few weeks to work out the kinks.
If you receive e-mail instructions on how to remove the file SULFNBK from Windows, don't do it. This virus warning is a hoax.
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