security breach
Unauthorized access incident
A security breach is an incident where unauthorized parties gain access to protected systems, data, or physical spaces.
The term covers everything from hackers stealing customer records to someone tailgating through a locked door.
The company notified customers after discovering a security breach.
A breach may be intentional or result from negligence—an employee leaving a laptop on a train can constitute a security breach as much as a sophisticated cyberattack.
- forced entryIllegal building intrusion
- espionageCovert intelligence gathering
- intrusionUnauthorized entry into space
- unauthorized entryEntering without permission
- tailgatingFollowing another vehicle unsafely
leaked emails · classified information · identity theft · credential stuffing · password theft · ransomware · zero-day exploit · unauthorized access · access control · network intrusion · break-in · malware · phishing · trespassing · insider threat · corporate espionage · denial-of-service attack · social engineering
- aviation threatshijacking, skyjacking, bomb threat, terrorism, explosive
- espionagespy, spies, double agent, double agents, spying
- airport securityTSA, TSA agent, screening, metal detector, checkpoint
- breachesrupture, violation, intrusion, break, infringement
- dangerhazard, peril, risk, threat, menace
- incidentsaccident, collision, crash, mishap, wreck