In cybersecurity, 'coherence' is borrowed from physics, where it describes the property of light waves maintaining a constant phase relationship, essential for laser operation. In a broader technology context, coherence can refer to the consistency and logical connection between components or data streams. For example, in distributed systems and secure communications, coherence ensures that information remains synchronized, reliable, and predictable, reducing the risk of errors or vulnerabilities. This concept is crucial for maintaining data integrity and effective system operations, as inconsistencies can be exploited by attackers or lead to system failures.