This morning, Tumblr issued what it called a "very important" security update for its iOS app. The social networking site said that on Tuesday it discovered a vulnerability in the app that could allow passwords to be compromised. Tumblr said that it cannot stress enough the importance of everyone downloading this update as soon as possible.
No details were released as to what the actual vulnerability was or how the intrusion could take place, but the issue appeared to be specific to the iOS app as no information has been posted about a similar vulnerability in the Android or Windows Phone versions of the app. Additionally, Tumblr said that all users of the iOS app should update their passwords after the update has taken place.