> Asked if Microsoft had previously fuzzed the Windows Defender component, a company representative said yes.

> "Fuzzing is one of a number of techniques we employ to update and strengthen our software," the representative said in an e-mail. "It is a standard practice we use as part of the Security Development Lifecyle for our products."

This journalist is naive. This answer says "sure we use fuzzing, but we have no idea if this particular bit of code was fuzzed." When you ask a binary question and a binary answer isn't provided, someone is usually trying to obfuscate the fact that they're on the wrong side of the binary.