There are various ways to tackle network security threats, including:

1. Implementing firewalls: Firewalls are network security systems that monitor and control incoming and outgoing network traffic based on predefined security rules.
2. Encrypting sensitive data: Encrypting sensitive data helps protect it from being intercepted and read by unauthorized parties.
3. Keeping software and systems updated: Regularly updating software and systems can help close vulnerabilities that could be exploited by attackers.
4. Using antivirus and anti-malware software: Antivirus and anti-malware software can help detect and remove malware from a network.
5. Implementing access control: Access control systems restrict access to resources based on predefined rules, helping to prevent unauthorized access.
6. Conducting regular security audits and penetration testing: Regular security audits and penetration testing can help identify and remediate vulnerabilities in a network.
7. Using multi-factor authentication: Multi-factor authentication provides an additional layer of security by requiring users to provide two or more forms of authentication, such as a password and a security token.
8. Providing security awareness training: Training users on security best practices and how to identify and avoid phishing scams can help reduce the risk of security incidents.
9. Backing up data: Regularly backing up data can help minimize the impact of data loss in the event of a security incident.

It’s important to have a comprehensive security plan in place and to regularly review and update it to stay ahead of evolving security threats.