What Is Cybersecurity?

Cybersecurity involves the protection of Internet-connected systems, devices, networks and data from unauthorized access and criminal use. Hackers can exploit vulnerabilities in a variety of ways to gain access to systems, stealing sensitive information and using it for illicit financial or criminal purposes. Cybersecurity tools and solutions are designed to detect and block these attacks. They can include antivirus software, firewalls, threat detection and prevention systems, data encryption, and cloud security services. These tools are available to individuals, businesses and organizations of all sizes.

The cybersecurity industry is constantly evolving to stay ahead of hackers and other attackers. Attacks on computers, devices and cloud systems are occurring all the time and can cause major disruptions in operations. In addition, new risks are emerging and expanding. For example, the proliferation of smart home and industrial devices that connect to the Internet is creating opportunities for hackers to find vulnerabilities.

Vulnerabilities can be introduced by malicious code (malware) that takes advantage of a weakness in computer programs or a human error. Examples of malware include ransomware, worms, phishing attacks, man-in-the-middle attacks and distributed denial-of-service attacks.

Some of the fastest-growing cybersecurity companies focus on endpoint security. These firms’ tools are used to detect malware on laptops, mobile phones and other devices that access corporate networks. The coronavirus crisis and shift to remote work has boosted demand for these products. Additionally, many of these fast-growing companies earn a significant percentage of revenue from government agencies. Companies that have government contracts include identity management providers SailPoint, CyberArk and Rapid7 as well as vulnerability management vendors Qualys and Tenable. SOC