In 2017 Equifax confirmed it has suffered a massive data breach, cyber criminals stole sensitive personal records of 145 million belonging to US citizens and hundreds of thousands Canada and in the UK.

Attackers exploited the CVE-2017-5638 Apache Struts vulnerability. The vulnerability affects the Jakarta Multipart parser upload function in Apache and could be exploited by an attacker to make a maliciously crafted request to an Apache web server.

The vulnerability was fixed back in March 2017, but the company did not update its systems, the thesis was also reported by an Apache spokeswoman to the Reuters agency.