The Heartbleed bug is vulnerability in OpenSSL encryption software, which can be exploited to steal data such as credit card numbers, passwords and other personal information. This poses major concerns for business owners and website owners across the globe due to the fact that the majority of these websites incorporate this form of encryption. The vulnerability exposed in recent weeks has therefore been open to exploitation for more than two years. There are several ways to protect yourself from this security risk including changing your passwords and installing software updates.”]
Source: https://informationsecuritybuzz.com/news/heartbleed-bug/