In cyber security, intrusion refers to unauthorized access or entry into a computer system, network, or data repository by an individual or entity with malicious intent. Intrusions can compromise the confidentiality, integrity, and availability of digital assets, potentially leading to data theft, system damage, or disruption of operations. Intrusions are typically carried out through exploitation of vulnerabilities in software, network configurations, or human error, highlighting the importance of robust security measures such as firewalls, encryption, and intrusion detection systems to detect and mitigate unauthorized access attempts.
An intrusion, in general terms, refers to the act of entering a place or domain without permission or authorization.
cyber security, an intrusion specifically refers to unauthorized access or penetration into digital systems or networks. It involves bypassing security measures to gain access to sensitive information or resources for malicious purposes, such as stealing data, disrupting operations, or installing malicious software.
Intrusions in cyber security can be classified into different types based on the motives and techniques of the intruders. Common types of intruders include hackers seeking to exploit vulnerabilities for financial gain or malicious intent, insiders with privileged access abusing their permissions, and automated bots or malware infecting systems to perform malicious activities. Intruders may use various techniques such as phishing, malware attacks, brute-force password cracking, or exploiting software vulnerabilities to gain unauthorized access and compromise digital assets.
In cyber law, intrusion refers to unauthorized access or interference with computer systems, networks, or data, which may violate legal statutes and regulations governing information security and privacy. Cyber laws define intrusions as illegal activities that can lead to criminal charges or civil penalties depending on the severity of the breach and the impact on affected parties. Legal frameworks address intrusions through provisions on data protection, computer fraud, unauthorized access to networks, and other cybercrimes, aiming to deter and prosecute individuals or entities engaged in unauthorized access and malicious activities.
The intrusion process typically involves several stages carried out by intruders to gain unauthorized access to computer systems or networks. This process often begins with reconnaissance and scanning activities to identify potential vulnerabilities and weaknesses in target systems. Intruders then exploit these vulnerabilities through techniques such as exploiting software flaws, social engineering, or password guessing to gain initial access. Once inside, they may escalate privileges, move laterally within the network, and exfiltrate sensitive data or disrupt operations. Effective intrusion detection and response strategies are essential to detect and mitigate intrusions at various stages of the attack lifecycle, minimizing potential damage and protecting against future threats.