Programmer Robin Seggelmann is responsible for Heartbleed. Learn whether this guy caused Heartbleed by accident, or on purpose.
Heartbleed is a vulnerability in OpenSSL. Confused about what SSL actually is? The video above explains SSL using paper dolls and simple English.
This video offers an explanation of the Heartbleed security flaw that even non-techies can understand.
You should be scared. Your personal data might not be safe online.