What about a scenario where a hack of widely used mining software enables an attacker to do a 51% attack? Miners would unknowingly aid the attacker by using the

What about a scenario where a hack of widely used mining software enables an attacker to do a 51% attack? Miners would unknowingly aid the attacker by using the compromised software, and the attacker could execute a double spend. It would be caught after the fact, and the software patched, but money would be lost and confidence in Bitcoin's resistance to double spends would be shaken.