To everyone in Cloudflare, account security is one of our most important tasks. We recognize that to every customer on our platform, we are critical infrastructure. We also know that the simplest attacks often lead to the most devastating of outcomes.
The Payment Card Industry Data Security Standard (PCI DSS) is a global financial information security standard that keeps credit card holders safe. It ensures that any company processing credit card transactions adheres to the highest technical standards.
Proxying around 5% of the Internet’s requests gives us an interesting vantage point from which to observe malicious behavior. However, it also makes us a target.