The term used to describe a flaw in software or hardware that could be exploited to breach security is:

• A. Vulnerability
• B. Patch
• C. Encryption
• D. Authentication

Answer: (A)

A weakness in a system, whether in software or hardware, that could be exploited to breach security is a vulnerability. This includes flaws from coding bugs to misconfigurations or design gaps that attackers can take advantage of to gain unauthorized access, execute code, or exfiltrate data. Patches are fixes released to close or mitigate known vulnerabilities. Encryption protects data by rendering it unreadable without the proper key, helping prevent information disclosure even if a vulnerability is exploited. Authentication ensures that only legitimate users or machines can access resources, but it doesn’t describe a flaw itself.