True or False: Account lockout is considered a form of Denial of Service (DOS).

Account lockout can indeed be considered a form of Denial of Service (DoS). When an account is locked out, the legitimate user is unable to access their account, which disrupts their ability to use services or resources they are authorized to access. This aligns with the fundamental principle of DoS, where legitimate users are denied service due to malicious intent, either from external attacks (like brute force attempts) or internal policies that lead to a lockout scenario.

In the context of security, account lockouts are often implemented as a protective measure to prevent unauthorized access, typically following a set number of failed login attempts. However, if the threshold for locking an account is set too low, or if an attacker deliberately triggers these failed attempts, it can result in a scenario where users are unnecessarily locked out, thus causing a Denial of Service to those users. Hence, it's accurate to classify account lockout under the broader umbrella of denial of service conditions, particularly when considering user experience and access denial due to security protocols.