Break-in (noun)

1. An act of breaking into a building, vehicle, or other enclosed space illegally with the intent to steal or cause damage.
2. An act of breaking into or entering a computer system without authorization.

Origin:

Break-in originated from early 20th century; from the verb break-in.

Examples:

1. The police were called after a break-in at the jewelry store.
2. The company was the victim of a break-in in its computer system, causing a lot of sensitive information to be stolen.
3. The break-in caused extensive damage to the front entrance of the building.
4. The intruder was caught in the act of break-in, thanks to the security camera footage.
5. The police are investigating the break-in, trying to gather any clues that could help them catch the thief.