A report by HP has found that 44 percent of all of the breaches in 2014 were caused by known vulnerabilities, between two and four years old.

https://www.welivesecurity.com/2015/02/25/top-10-breaches-2014-attacked-old-vulnerabilities-says-hp/
https://www.welivesecurity.com/2015/02/25/top-10-breaches-2014-attacked-old-vulnerabilities-says-hp/

A report by HP has found that 44 percent of all of the breaches in 2014 were caused by known vulnerabilities, between two and four years old.
Wed, 25 Feb 2015 09:06:59 +0000

Source: WeLiveSecurity
Source Link: https://www.welivesecurity.com/2015/02/25/top-10-breaches-2014-attacked-old-vulnerabilities-says-hp/