Something strange is afoot at Tumblr today. Via BuzzFeed: Hacker Group Exploits Massive Security Hole In Tumblr
“There is a viral post circulating on Tumblr which begins "Dearest 'Tumblr' users". If you have viewed this post, please log out of all browsers that may be using Tumblr immediately.”— Tumblr's support staff, in a statement about an infected post being circulated around the popular blogging network.
