Heartbleed is an open source bug. It is the biggest failure in open source software till date. An OpenSSL programming mistake opened a security hole in a program that affected hundreds of millions of websites, who relied upon it for their fundamental security. A programming blunder enabled attackers to pull down 64k chunks of "secure" server memory. The open source method remains as good as ever when used correctly.

To read the article by Steven J. Vaughan-Nichols, experienced writer of technology and business of technology, follow http://www.zdnet.com/heartbleed-open-sources-worst-hour-7000028420/