In terms of updates, what is a disadvantage of an unpatched OS?

An unpatched operating system is particularly vulnerable to security threats because patches often contain critical updates that fix known vulnerabilities. When these vulnerabilities are not addressed, attackers can exploit them to gain unauthorized access, install malware, or cause system disruptions. Unpatched systems are an attractive target for cybercriminals, as they are often easier to breach due to the lack of defenses provided by the updates.

By regularly applying patches, an organization can significantly reduce its attack surface, thereby protecting sensitive data and maintaining system integrity. While the other options may reflect potential issues that could arise due to unpatched systems, the primary and most concerning consequence of not updating an operating system revolves around the heightened risk of encountering security threats.