Cyber/saɪbər/ Definition 1 of 3Pro Tip 1/3Security Context Used to discuss protecting data and systems in digital spaces. After the cyber attack, they improved their cyber defenses. Pro Tip 2/3Negative Connotation Often associated with illegal or harmful activities online. Cyber crime rates have increased with internet usage. Pro Tip 3/3Specialized Terms Forms compound nouns to describe specific internet-related concepts. Companies are investing more in cyber intelligence.