To protect the network from security threats, the following measures can be taken:

1. *Implement robust cryptography*: Use advanced cryptographic techniques, such as public-key cryptography and hash functions, to secure transactions and data.

2. *Conduct regular security audits*: Perform regular security audits and penetration testing to identify vulnerabilities and address them before they can be exploited.

3. *Use secure protocols*: Implement secure communication protocols, such as SSL/TLS, to protect data in transit.

4. *Enforce access control*: Implement access control mechanisms, such as multi-factor authentication and role-based access control, to ensure only authorized entities can access the network.

5. *Monitor for suspicious activity*: Implement real-time monitoring and anomaly detection to quickly identify and respond to potential security threats.

6. *Implement a bug bounty program*: Encourage responsible disclosure of security vulnerabilities by offering rewards for identifying and reporting bugs.

7. *Keep software up-to-date*: Regularly update and patch software to ensure any known vulnerabilities are addressed.

8. *Use a decentralized architecture*: Design the network with a decentralized architecture to reduce the risk of a single point of failure.

9. *Use secure wallets*: Encourage users to use secure wallets and follow best practices for wallet security.

10. *Educate users*: Educate users about security best practices and the importance of security in the network.

By implementing these measures, the network can be protected from security threats, ensuring the integrity and trustworthiness of the blockchain and cryptocurrency ecosystem.