The popular security expert John McAfee and a team of four hackers demonstrated that is is possible to read WhatsApp message even if it is encrypted. The hacker crew used their servers located in a remote section in the mountains of Colorado to read the message. McAfee explained that the problem doesnt affect WhatsApp but the Android OS that is affected by a serious design flaw. The exploitation of the vulnerability allowed McAfees team to take full control of the information managed by the mobile device. Similar problems have been noticed also with other messaging apps.”]
Source: http://securityaffairs.co/wordpress/47503/hacking/hacked-whatsapp-message.html