A hardware security key is a physical gadget—like a USB stick—that gives you an extra layer of security through multifactor authentication (MFA). When you sign in to certain services, you’ll plug it ...

And Microsoft’s latest Windows security update disrupts authentication, devices, and websites, forcing enterprises to roll back installations.

Microsoft is finally blocking a long-since retired program that it said led to “abuse and credential theft,” yet remained widely trusted for years. Beginning in April, Redmond will remove trust for ...