Ask HN: Ratio of “More Complexity” to “Simpler Vulnerabilities”

I seem to recall a rule or law in programming theory (Simmilar to Moore's Law) that states this but I can't seem to find it.

An example would be:

Mailing a couple hundred obvious fake ballots to internet influencers, who would publicize the fact that fake ballots are being mailed out, thus disrupting the entire system with a simple albeit illegal action.