Heartbleed

[The Anteater]

Think the vuln has been there for longer, it's just a question of who became aware of it when, and what they did with the knowledge. What's clear is that we have all been leaking sensitive information for years. Quite possibly, someone has been collecting it.

It's been around since the very beginning of 2012. Because it's open source, they can track the exact line of code responsible for the problem, who wrote it and when they submitted it:

http://www.theguardian.com/technology/2014/apr/11/heartbleed-developer-error-regrets-oversight