In cybersecurity and electronics, radiation refers to the emission of energy as electromagnetic waves or particles, which can disrupt or damage electronic components. High levels of radiation, such as cosmic rays or nuclear events, can cause data corruption, hardware malfunctions, or system failures. Devices used in critical environments, like satellites or military equipment, are often 'hardened' to resist radiation effects. Understanding radiation risks is crucial for protecting sensitive data and ensuring system reliability, especially in aerospace, defense, and nuclear sectors.