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Cyber-security is the set of measures taken to defend Internet-connected devices and systems from attacks, hacks, phishing schemes, identity theft, financial loss, and data breaches. This is an essential part of protecting our modern, interconnected world — from personal computers to critical infrastructure like power plants and water treatment facilities.

A strong cyber security strategy relies on three main areas of defense: people, processes and technology. The human element includes educating employees on industry best practices, company policies and incident reporting. Processes include regular risk assessments, formal penetration tests and red team reviews of the network and software to identify vulnerabilities. A robust cyber security program also has backup and recovery systems in place to ensure that all sensitive information is protected if attacked.

Lastly, cyber security tools can include next-generation firewalls, DNS filtering, malware protection and antivirus software to protect endpoint devices such as desktops, laptops, tablets and smartphones; networks; and the cloud. These tools can also be used to encrypt data, both in transit and at rest, to prevent it from being compromised by hackers.

In addition to these cybersecurity tools, AI can be used for a number of security functions such as threat detection, alert fatigue reduction and human augmentation. This allows humans to focus on the most important tasks and frees up time for other critical work. Some well-known cybersecurity vendors include Check Point, Cisco, Code42, CrowdStrike, FireEye, Imperva, McAfee and Trend Micro. Cybersecurity is an ever-changing field, and keeping up with new threats requires constant vigilance.