Part of the difference is that 35 years ago the potential attack surface of any given piece of software was, generally, much lesser. Today it seems like everything is ubiquitously networked, and any given person&#x27;s personal information is stored on god-only-knows how many servers under the purview of god-only-knows how many different people.<p>I agree that integer overflow is a relatively minor concern for things like locally-installed non-networked chess applications, but as soon as you give attackers both an attack surface and an incentive to attack, the equation changes somewhat.