A series of high-profile security incidents have rocked Microsoft over the past few years, and a scathing report from the Cyber Safety Review Board recently concluded that “Microsoft's security culture was inadequate and requires an overhaul.” Inside Microsoft, there is concern that the attacks could seriously ...

April Patch Tuesday: Microsoft Releases Fixes for Two Actively Exploited Flaws. This week, Microsoft rolled out fixes for almost 150 vulnerabilities, two of which are being actively exploited. Three bugs are rated critical, 142 are rated important, and two are rated moderate. Here's how you can prioritize.

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Microsoft prioritizes account security and works to prevent people from signing in without your permission. When we notice a sign-in attempt from a new location or device, we help protect the account by sending you an email message and an SMS alert.