the.com/defect
A flaw with two faces: a bug in the product or a sprint to the enemy.
means A fault or imperfection in something, or the act of abandoning one side to join another.
from From Latin defectus, past participle of deficere, to fail or fall short — literally to be undone from something.
Cold War senseSpies defecting made the word famously political.
Same rootShares DNA with deficient and deficit.
Verb vs nounDefect the flaw, deFECT the betrayal.