Microsoft on Tuesday plans to deliver 12 fixes - its largest patch rollout in a year - to address a number of vulnerabilities impacting its operating systems and related software.

Microsoft defended the security posture of its Vista operating system (OS) this week, claiming the platform has had a safer first year in terms of vulnerability management than any of its competitors.

A little-known cybersecurity intelligence organization is offering $20,000 to researchers who can provide exploitable vulnerabilities in Windows or a Windows Diffuse Application.

Microsoft pushed out two fixes to close three vulnerabilities on Patch Tuesday, including two "critical" server-side flaws that do not require any user interaction to be exploited.

Microsoft next week is expected to release one patch to correct "critical" security vulnerabilities.

Microsoft is investigating reports of a glitch in one of its December patches that unexpectedly shuts down Internet Explorer 6 (IE6).

Microsoft has released a detailed list of more than 300 hotfixes and security patches included in the upcoming initial service pack (SP1) for its Windows Vista operating system.

Microsoft announced today it plans to release seven patches - three repairing "critical" vulnerabilities - as part of its monthly security update on Tuesday.

This week's news that Apple's QuickTime media player contains a new and "extremely dangerous" flaw served as a perfect lead-in to the release of the latest SANS Top 20, which lists client-side vulnerabilities among the most dangerous threats facing end-users.

Monday marks the unofficial start to the online holiday shopping season, and while experts are predicting record-breaking internet sales this year, security researchers are warning that criminals will be prowling cyberspace more than ever before.