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Microsoft beefs up security products to block adware

Potentially unwanted applications can pose risks to enterprises.

A building on the Microsoft Campus

Credit: Stephen Brashear/Getty Images for Microsoft

Microsoft is adding a new opt-in defense for enterprises to block adware, which is often sneakily wrapped into free downloads.

Adware is often classified as a potentially unwanted application, or PUA, an industry term for applications that aren’t necessarily malware but could be a security or performance risk.