After the spread of viruses in the 1990s, the 2000s marked the institutionalization of cyber threats and cybersecurity. In the 1970s and 1980s, computer security was mainly limited to academia until the conception of the Internet, where, with increased connectivity, computer viruses and network intrusions began to take off. Cybersecurity and cyber threats have been consistently present for the last 50 years of technological change. Since the Internet's arrival and with the digital transformation initiated in recent years, the notion of cybersecurity has become a familiar subject in both our professional and personal lives.

Security is of especially high importance for systems that govern large-scale systems with far-reaching physical effects, such as power distribution, elections, and finance. Cybersecurity is one of the most significant challenges of the contemporary world, due to both the complexity of information systems and the societies they support. The field has become of significance due to the expanded reliance on computer systems, the Internet, and wireless network standards such as Bluetooth and Wi-Fi, and due to the growth of smart devices, including smartphones, televisions, and the various devices that constitute the Internet of things (IoT). While most aspects of computer security involve digital measures such as electronic passwords and encryption, physical security measures such as metal locks are still used to prevent unauthorized tampering.Ĭomputer security, cybersecurity ( cyber security), or information technology security ( IT security) is the protection of computer systems and networks from attack by malicious actors that may result in unauthorized information disclosure, theft of, or damage to hardware, software, or data, as well as from the disruption or misdirection of the services they provide. Security information and event management (SIEM).Host-based intrusion detection system (HIDS).

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