Cybersecurity is a very important and relevant topic in today’s world. It refers to the practice of protecting systems, networks, and programs from digital attacks that can harm individuals and organizations.
Cyberattacks will all have malicious intent, such as accessing, changing, or destroying sensitive information; extorting money from users via ransomware; or interrupting normal business processes.
Cybersecurity aims to prevent or mitigate these attacks by using various technologies, measures, and practices.
There are many types of cybersecurity, depending on the domain or layer of IT infrastructure that needs to be protected.
Critical infrastructure security
This protects the computer systems, applications, networks, data and digital assets that a society depends on for national security, economic health and public safety. For example, the power grid, the water supply, the transportation system, the health care system, etc.
In the United States, there are some guidelines and frameworks for IT providers in this area, such as the NIST cybersecurity framework and the CISA guidance.
Network security
This prevents unauthorized access to network resources and detects and stops cyberattacks and network security breaches in progress. For example, firewalls, antivirus software, encryption, VPNs, etc. Network security also ensures that authorized users have secure access to the network resources they need, when they need them.
Application security
This protects applications from cyberattacks by ensuring that they are designed, developed, tested, and maintained with security in mind. For example, code reviews, vulnerability scanning, penetration testing, secure coding practices, etc. Application security also involves educating users about safe and responsible use of applications.
There are many more types of cybersecurity, such as cloud security, endpoint security, data security, identity and access management (IAM), etc. Each type of cybersecurity has its own challenges and solutions.
Companies to watch
Cybersecurity companies such as CrowdStrike, Okta, Zscaler and Palo Alto Networks are valuable assets with businesses willing to pay good money to protect against hackers.
NOTE: Always do your own very careful research – none of these ‘suggestions’ are ‘recommendations’.
Remember: RESEARCH! RESEARCH! RESEARCH!