Heartbleed bug was found in the OpenSSL cryptographic software. This bug allows capture protected personal data encryption with SSL/TLS. SSL/TLS provides security and privacy at web, email, social networks. Heartbleed application allows to everyone read memory of the protected systems with OpenSSL software. Through this bug it is possible to capture secret keys which encrypt users’ confidential information. Eventually, it lets read,nlisten and steal the user’s information.