Microsoft released patches on Tuesday for three flaws, the most serious of which could give attackers a back door into the company's security server product.
Vulnerabilities in a technology widely used for network authentication have left computers running Unix, Linux and Apple Computer's Mac OS X potentially open to attack.
A security company has issued a 'highly critical' warning relating to an attack that exploits a flaw in NullSoft's popular music player.
Microsoft released on Tuesday fixes that cover at least 20 Windows flaws, several of which could make versions of the operating system vulnerable to new worms or viruses.
Microsoft has a message for Windows users: Patch your computers quickly.
A security expert has warned users of the latest wireless network security standard, Wi-Fi Protected Access, to pick good passwords or risk being compromised.
Security experts warn that code which could be used to attack and crash Cisco routers has been posted to public mailing lists.
A call for online vandals to take part in a Web site defacement contest has some companies warning clients to beware over the US holiday weekend.
Security experts worried on Thursday that a flaw in Microsoft Windows and another in Cisco's ubiquitous network routers could lead to serious Internet attacks.
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.
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