As a forensic auditor, I noticed the warning signs long before my marriage fell apart. My husband, David, had become secretive, and one night he came home drunk, smelling of expensive perfume that wasn’t mine.

When I confronted him with hotel charges and suspicious financial records, he exploded in anger. He slapped me and smashed my laptop, convinced he had destroyed months of evidence.

What David didn’t know was that every file had already been backed up securely. I had also created a dead man’s switch that would automatically send the evidence if I failed to stop it.

By morning, those records would reach his company’s board, federal investigators, and law enforcement unless I personally canceled the process-