A detection gap in cybersecurity refers to the period or area where malicious activities or threats go unnoticed due to insufficient, absent, or ineffective monitoring and detection mechanisms. This gap can occur for various reasons, such as outdated security tools, misconfigured systems, lack of visibility, or sophisticated attack techniques that evade standard detection methods. Detection gaps increase the risk of successful cyberattacks, as threats may persist undetected, allowing attackers to achieve their objectives. Organizations must regularly assess and update their security posture, implement layered defense strategies, and ensure continuous monitoring to minimize detection gaps and improve incident response times.