This is according to "two people familiar with the matter". While nobody would be surprised that the NSA had exploited heartbleed, this article gives no compell

This is according to "two people familiar with the matter". While nobody would be surprised that the NSA had exploited heartbleed, this article gives no compelling proof. I wish newspaper articles had a bit of metadata that indicated whether the sources are verifiable. Then we wouldn't have to waste any time reading them when they aren't.