I work for a web hosting company... (Score 3, Interesting)

This information doesn't surprise me. I think the increase is do to the increasing ease of standing up a website. Anybody with minimal computer/coding/security experience can stand up a website that takes your credit card information. I've dealt with COUNTLESS sites that have horrible file permissions, no security apps (like mod_security), and their DB connection password is weak. It's unbelievable how little effort folks will put into securing their business operations. On top of that, customers who repeatedly get hacked won't be willing to go through the hassle of auditing their customers or upgrading their software, so the same vulnerabilities get exploited again.