The SMB has urgent requirements for improving network security and reducing complexity. There are many ways to improve the security of the SMB network. Improving the security of the SMB network helps prevent data from being damaged, tampered with, or lost during data transmission and communication. Common methods are as follows!

Transmission using encryption

Enabling SMB encryption ensures that data is secure during transmission and cannot be eavesdropped or tampered with. SMB 3.0 and later support encryption options.

Signature and authentication

The SMB service is configured to require digital signature and authentication between clients and servers to ensure the validity of identities of both parties and digital attacks by malicious hosts.

Enable IPsec

Internet Protocol Security (IPsec) is used to protect SMB communications, which provides data integrity, encryption, and authentication.

Data checksum

Use and to verify data integrity during data transmission. If the checksum does not match, the data checksum mechanism may have been tampered with.

Monitoring and logging

Implement monitoring and logging mechanisms to detect anomalies and try them out in time to take action.

Network firewall and security policy

Configure network firewalls to restrict access to SMB services and adopt appropriate security policies to prevent unauthorized access and data breaches.

Update and maintain regularly

Keep operating systems and applications up-to-date and ensure that systems and software are free of known security vulnerabilities to reduce the risk of attacks.

Network isolation

Isolate SMB networks from other networks to reduce the risk of unauthorized access.

Backup and restore policies

Implement a regular backup and recovery strategy to enable quick recovery in the event of data loss or attack.

Education and training

Provide training to employees and users on cybersecurity, educate them on how to avoid malware and attacks, and remain vigilant.

Security audit

Conduct regular security audits of SMB networks to identify and remediate potential security vulnerabilities.

Security policies and guidelines

Develop and enforce security policies and guidelines for SMB networks that clearly specify security standards and measures for data transmission and communication.

SMB is commonly used for file sharing, shared printing, remote operation, message transfer, resource discovery, authentication and access control, and file and directory management. The early SMB protocol has some security vulnerabilities, so you should pay more attention to security when using it, especially when exposed on public networks.