This article explores the innovative role of digital twin technology in strengthening cybersecurity defenses. By creating real-time, virtual replicas of IT environments, digital twins enable organizations to simulate cyberattacks, test vulnerabilities, and refine security responses before threats materialize. The ability to predict potential breaches and optimize defenses in a controlled environment offers a proactive approach to cybersecurity, shifting from reaction to prevention. However, challenges such as data privacy risks and the computational demands of maintaining digital twins must be addressed for widespread adoption. As cyber threats grow increasingly sophisticated, digital twin technology presents an intriguing frontier in cybersecurity innovation.