Sealing the Envelope: Encryption Strategies for Secure Business Network Communication

Network encryption protects your business against threats — and prevents data loss, unauthorized access, or disruptions in business.

There are plenty of things network encryption entails, such as:

  • Data encryption
  • Authentication
  • End-to-end encryption
  • Secure email

We’ll now take a closer look at all of these — and help you create a bulletproof security strategy that minimizes the attack surface, minimizes potential security breaches, and eliminates any security flaws.

Let’s jump in!

What is Network Encryption?

Network encryption is an encryption tool for securing data you send over the network.

It protects you against unauthorized users and eavesdropping – so you can securely send confidential information.

Why is Network Encryption Important?

There are two main reasons why you absolutely need network encryption:

  • Protecting sensitive data during transmission. The encryption of network traffic is crucial in maintaining the confidentiality and integrity of information, ensuring user privacy and data accuracy.
  • Securing communications across different devices and platforms, providing a strong defense against cyber threats and unauthorized intrusion. 

Top 19 Network Encryption Best Practices

Is your network secure – or are you allowing malicious actors to have unauthorized access that can potentially put your organization at risk?

To find out, check whether you’re leveraging these 19 best practices for network security.

1. Implement Strong Encryption Algorithms

There are different encryption methods/algorithms you can use to secure your data. For instance, some of the most popular algorithms include:

  • AES (Advanced Encryption Standard): A widely used symmetric encryption algorithm for securing electronic data.
  • RSA (Rivest-Shamir-Adleman): A widely adopted asymmetric encryption algorithm used for secure data transmission.
  • ECC (Elliptic Curve Cryptography): Offers similar security to RSA with smaller key sizes, making it more efficient.
  • SHA-256 (Secure Hash Algorithm 256-bit): A cryptographic hash function used for data integrity.
  • 3DES (Triple Data Encryption Standard): An older symmetric-key encryption algorithm that encrypts data three times for increased security.
  • Blowfish: A symmetric encryption algorithm designed to replace DES with a fast encryption rate.
  • Twofish: A symmetric key block cipher with a block size of 128 bits and key sizes up to 256 bits, known for its speed and security.
  • Diffie-Hellman: A key exchange algorithm that allows two parties to establish a shared secret over an unsecure communication channel.
  • MD5 (Message-Digest Algorithm 5): A widely used, though now considered insecure, cryptographic hash function for creating a 128-bit hash value.
  • TLS (Transport Layer Security): The successor to SSL, TLS is a protocol that ensures privacy between communicating applications and their users on the internet, providing secure data transfer, confidentiality, and integrity.

Which one you choose depends solely on your needs.

But even if you have an mathematical algorithm in place, we still recommend reviewing and updating it regularly, so you can be secured against the most up-to-date cybersecurity threats.

2. Regularly Update Encryption Keys

Establish a sound decryption process of key management strategy with the regular rotation of keys for encryption. 

This practice ensures that even if a key is compromised, the impact is minimized, preserving the confidentiality and integrity of encrypted data over time.

3. Secure Wi-Fi Networks with WPA3

WPA3 (Wi-Fi Protected Access 3) is the latest wireless security protocol for enhancing Wi-Fi security.

As an upgrade from WPA2, WPA3 provides stronger protections against offline dictionary attacks, making it significantly harder for brute-force attacks to guess passwords. You can see a great example of WPA3 in use with Wi-Fi hotspots, such as cafes. WPA3 protects users’ data from common vulnerabilities like man-in-the-middle attacks — even if no strong password is used for a network.

4. Implement VPNs for Remote Access

Deploying Virtual Private Networks (VPNs) is critical for securing remote access

Configure robust authentication mechanisms and regular updates of VPN protocols to bolster defenses against potential vulnerabilities to remote connectivity.

5. Encrypt Data on Endpoints

Ensure effective data encryption on endpoint devices to protect sensitive information. 

Full-disk encryption will provide you with solid protection — securing you against unauthorized access in the event of device theft or loss.

6. Conduct Regular Security Audits

Having regular security audits is a MUST-DO.

Make timely adjustments to encryption protocols based on audit findings and enhance your network’s strength against threats.

7. Enforce Access Controls

Add access controls to restrict data access based on user permissions. 

This ensures that only authorized individuals can access sensitive information — reducing the security risk of data breaches.

8. Secure Email Communications

Employ robust email encryption process to protect sensitive info during email communication. 

Additionally, carry out user training on how to recognize phishing attempts to enhance your security posture against email-related threats.

9. Monitor and Analyze Network Traffic

Deploy intrusion detection and prevention systems to monitor network traffic. 

Use real-time analysis of network behavior to detect and respond to security requirements and threats — ensuring a proactive defense strategy.

10. Isolate Critical Systems

To limit the potential impact of a security breach, isolate critical systems from the broader network. 

Create network segments and use firewalls to contain damage in case one segment is compromised — preserving the integrity of essential systems.

11. Implement Multi-Factor Authentication (MFA)

Enhance user authentication by deploying MFA. 

This adds an extra layer of security by combining multiple verification methods, such as: 

  • Passwords
  • Biometrics
  • Smart cards. 

This minimizes unauthorized access — providing a great defense against identity-related breaches.

12. Regularly Backup Encrypted Data

Ensure disaster recovery and business continuity by maintaining regular backups of encrypted data. 

Securely store these backups, regularly test restoration processes, and align with compliance and security policy to form a solid backup strategy.

13. Educate Employees on Security Best Practices

Avoid social engineering attacks by educating employees on business network encryption best practices. 

Conduct regular training sessions focusing on:

  • Recognizing phishing attempts
  • Promoting secure password practices,
  • Emphasizing the importance of data confidentiality 

This fosters a security-aware organizational culture and massively promotes security standards.

14. Stay Informed About Emerging Threats

Cyber threats are always involving — and you should be aware of them!

Establish mechanisms for continuous threat intelligence. That way, you can adapt encryption strategies to address new and evolving challenges effectively.

15. Implement Network Segmentation

Enhance security by dividing the network into smaller segments. 

Restrict lateral movement in the event of a breach by applying segmentation with properly configured firewalls. This minimizes the potential for unauthorized access, which offers more granular control over your network traffic.

16. Secure DNS Traffic

Prevent domain hijacking and DNS-related attacks by protecting DNS traffic. 

Use DNS security solutions like DNSSEC to verify the authenticity of DNS responses — reducing the risk of malicious domain resolution.

17. Regularly Test Encryption Implementations

Maintain a robust security posture by conducting regular penetration testing. 

This proactive approach identifies and addresses potential weaknesses to ensure the effectiveness of encryption measures.

18. Establish an Incident Response Plan

Efficiently address security incidents by developing a step-by-step incident response plan. 

Include predefined steps for identifying, containing, eradicating, recovering, and learning lessons from security events.

19. Adhere to Compliance Standards

Follow network encryption practices with industry-specific compliance standards. 

Regularly audit and validate encryption measures against applicable standards to minimize legal and reputational risks.

Supercharge Cybersecurity with Perimeter 81

Business network encryption is one of the most important elements of successful organizations.

From leveraging strong encryption algorithms to staying on top of security trends, by implementing these practices, you can significantly enhance your security posture 

Looking for a bulletproof security for your business? 

Book a FREE demo with our experts now and take your cybersecurity to the next level for your growing business!


What are the four 4 most secure encryption techniques?
There are four fundamental types of encryption systems, each serving distinct purposes in securing sensitive information:

Advanced Encryption Standard (AES): AES is a symmetric encryption algorithm widely adopted for its efficiency and reliability. Employed in various applications, including a secure communication over channels and protecting data at rest, AES has become a cornerstone in modern cryptographic practices.

Triple DES (Data Encryption Standard): A symmetric key block cipher, Triple DES enhances security by applying the DES algorithm three times consecutively. Although somewhat surpassed by AES in recent years, Triple DES continues to be utilized in legacy systems due to its compatibility and strength.

Blowfish: Blowfish is a symmetric key algorithm designed for fast encryption of large amounts of data. While not as prevalent as AES, Blowfish remains relevant in specific applications where efficiency is paramount.

– Rivest-Shamir-Adleman (RSA): RSA relies on the mathematical complexity of factoring large prime numbers, providing a robust foundation for securing sensitive information in various contexts.
What encryption standard is currently recommended by NIST?
NIST recommends the Advanced Encryption Standard (AES) with Galois/Counter Mode (GCM) as the most efficient technique for Authenticated Encryption with Associated Data (AEAD), outlined in FIPS 197 and SP 800-38D. 

Additionally, for hashing purposes, SHA-256, defined in FIPS 180-4, is widely endorsed by NIST for its robustness and secure cryptographic properties.
What is the most secure encryption algorithm 2023?
A suite of cryptographic algorithms known as Ascon, is slated for publication as NIST’s lightweight cryptography standard in the latter part of 2023. 

Tailored for safeguarding data generated and transmitted by the Internet of Things (IoT), encompassing its diverse array of diminutive sensors and actuators, these chosen algorithms are strategically crafted for optimal security.