An intruder is an unauthorized person or thing that enters a place, situation, or entity without permission or invitation. Typically associated with negative connotations, an intruder is commonly regarded as an unwelcome individual who invades another's privacy, property, or space, often with the intent to commit a crime or cause harm.
In the context of personal safety or security, an intruder refers to someone who unlawfully enters a building, house, or property, bypassing any form of legal access or authorization. Such intrusion may be driven by a variety of motives, including theft, vandalism, or harassment. Intruders may attempt to break through barriers, such as doors or windows, to gain entry, or exploit security vulnerabilities to bypass alarm systems or surveillance measures.
The term "intruder" can also extend to non-human entities that invade a system or network without proper authorization, such as computer hackers or malware. In the world of cybersecurity, an intruder is often an individual or group aiming to gain unauthorized access to computer systems and databases, typically to steal valuable information, disrupt services, or compromise system integrity.
Overall, an intruder is characterized by their trespass or invasion upon a place, code of conduct, or network, with the intention of going beyond the boundaries set by law or proper permission. Their actions are generally seen as threatening, unwanted, and potentially harmful, warranting appropriate measures to identify, prevent, or apprehend their activities for the maintenance of safety, security, and privacy.
