Welcome to this morning's edition of "First To Know," a series in which we keep you in the know on what's happening in the digital world.
Today, we're looking at three particularly interesting stories. Microsoft sent a letter to Attorney General Eric Holder in an attempt to make headway on PRISM disclosures. Google wants to license TV content for streaming online, according to people with knowledge of the company’s plans. And finally, Tumblr patched a security hole in its iOS app.
Check out the video above for more on these stories.