Microsoft Security Response Center

Official corporate security response

Security Research & Defense

Information from Microsoft about vulnerabilities, mitigations and workarounds, active attacks, security research, tools and guidance

Trustworthy Computing

Perspectives on security, privacy, online safety and reliability topics

Microsoft Malware Protection Center

Threat research & response

Microsoft Security Blog

Discussions about industry and Microsoft security topics

Microsoft Privacy & Safety

Privacy and safety policy initiatives, product news, and perspectives from across Microsoft

Security Tips and Talk

Tips about computer security, online safety, and privacy

Ecosystem Strategy

A broader look at Microsoft's Trustworthy Computing and work with industry experts

Security Development Lifecycle

Tools, guidance and information for developing more secure software

Microsoft BlueHat

Information about technical security issues, innovative techniques and best practices from Microsoft’s BlueHat security conference.

Roger Halbheer’s Security Blog

Interesting information from Chief Security Advisor of Microsoft EMEA

Microsoft On The Issues Blog

News and perspectives on legal, public policy and citizenship topics

The Official Microsoft Blog

News and perspectives from Microsoft

@MSFTSecurity

Security and privacy efforts for Microsoft – from the inside

@Safer_Online

Privacy and online safety guidance and information

@MSFTSecResponse

Microsoft’s official security response team

@msftmmpc

Microsoft Malware Protection Center team

@MSFTsdl

Microsoft’s Security Development Lifecycle team