Microsoft Ad Campaign Targets Google's E-Mail Privacy

Pointing out Google scans emails to place ads

Microsoft is firing the latest missive in its battle against Google, reigniting a previous line of attack that the Gmail provider doesn't respect users' privacy and is mining emails for advertising guidance.

The tech company is rolling out a national advertising campaign this week that takes aim at Google for scanning users' emails and then serving contextual advertisements based on the content. The campaign touts Microsoft's email platform, Outlook.com, as much more privacy-friendly and amounts to a big bet for the Windows-maker: As people learn more about Google's practices, they'll flee to Microsoft in droves.