Yes, there is programming and then there is the methodology of how you put the system together, and cybersecurity is never going to be an absolute certainty. It's a cat-and-mouse game in which you will always be staying ahead in a technology, because we've seen vulnerabilities in things like OpenSSL Heartbleed that happened. You don't know they're there.
We've had just recently Spectre and Meltdown with hardware. I think the—