
Computer security - Wikipedia
Computer security (also cyber security, digital security, or information technology (IT) security) is a subdiscipline within the field of information security.
What Is Cybersecurity? | IBM
Cybersecurity is the practice of protecting people, systems and data from cyberattacks by using various technologies, processes and policies. At the enterprise level, cybersecurity is key to overall risk …
Computer security | Definition & Facts | Britannica
Nov 21, 2025 · computer security, the protection of computer systems and information from harm, theft, and unauthorized use. Computer hardware is typically protected by the same means used to protect …
What is Cybersecurity? Key Concepts Explained | Microsoft Security
Learn about cybersecurity and how to defend your people, data, and applications against today’s growing number of cybersecurity threats. Cybersecurity is a set of processes, best practices, and …
What Is Cybersecurity? Technology And Data Protection - Forbes
Feb 5, 2024 · Cybersecurity is a pretty broad term: It refers to the practice of protecting computer systems, networks, programs, devices and data from cyber attacks through both technological …
What is cybersecurity? - Cisco
Cybersecurity is the practice of protecting systems, networks, and programs from digital attacks. These cyberattacks are usually aimed at accessing, changing, or destroying sensitive information; extorting …
What Is Cybersecurity | Types and Threats Defined - CompTIA
Mar 5, 2025 · Cybersecurity involves any activities, people, and technology your organization uses to avoid security incidents, data breaches, or loss of critical systems. It’s how you protect your business …
What Is Cybersecurity? A Comprehensive Guide | Purdue Global
Feb 14, 2025 · Cybersecurity is “the art of protecting networks, devices, and data from unauthorized access or criminal use.” Cybersecurity has become especially relevant, with attacks increasing in …
What Is Computer Security? Types, Importance & Best Practices
Sep 11, 2025 · Discover what computer security is, why it matters, and how to protect systems from cyber threats. Learn types, best practices, and future trends in security.
What Is Cybersecurity? Best Practices & More | CrowdStrike
Also known as information technology security (IT security), it protects against threats that aim to access or destroy sensitive information, exhort money from users, or interrupt normal business practices.