Compatibility issues in cybersecurity refer to problems that occur when hardware, software, or systems are unable to work together seamlessly. These issues can arise when new security features, updates, or protocols are introduced, but some devices or applications do not support them. As a result, organizations may face vulnerabilities, reduced functionality, or even system failures. Compatibility issues can hinder the deployment of security patches, integration of new technologies, or compliance with industry standards. Addressing these problems often requires updates, patches, or even replacing outdated components to ensure all parts of the system can communicate and operate securely together.