There's no mention of deliberate circumvention. It doesn't even say there was circumvention, only that the files were damaged with the rules in place. If the rule is "don't damage these files when writing them" and it's your job to write them, it's adds no safety.

> Like other computer systems that are critical to operating flights, the FAA has imposed procedures to ensure data aren’t damaged by technicians working on them, said the person. The file or files were altered in spite of rules that prohibit those kind of changes on a live system.

> Agency officials are attempting to determine whether the two people made the changes accidentally or intentionally, and if there was any malicious intent, the person said.