Definition
Trust is the assurance that a system, component, or individual will behave as expected and intended, even under adverse conditions. It is built through verifiable mechanisms, consistent performance, and adherence to established security policies and protocols. In practice, trust is established by implementing security controls, auditing system behavior, and ensuring data integrity. This assurance is critical for maintaining operational continuity, protecting sensitive information, and preventing unauthorized access or manipulation. For instance, a secure connection using TLS/SSL establishes trust between a user's browser and a website, ensuring data is transmitted confidentially. Trust is often confused with mere reliability, which focuses on uptime, whereas trust encompasses security and integrity. Concepts of trust are fundamental in cybersecurity domains like CompTIA Security+ and CySA+.