Struts vulnerability could be responsible for Equifax hack. Two Struts vulnerabilities in Apache Struts could be linked to Equifax breach. One vulnerability from March seems much more likely because its easier to exploit and much better known. Contrast has been monitoring and blocking widespread attacks against CVE-2017-5638 for many months from all over the world, including China, Hong Kong, and India. With automated exploit scanning coming so quickly after vulnerabilities, there is no way to defend yourself without the ability to roll out protection.”]