We understand that your organization faces numerous cyber threats that require a comprehensive approach to network security. 

Securing your network builds a digital stronghold to protect your data and infrastructure—and we're here to help defend your network from Malware, phishing, and DDoS attacks. 

We've put together a guide full of actionable steps to get you started. This master list outlines 13 critical tasks for network engineers and IT managers to start securing networks effectively.

We’ll cover how to:

  • Identify assets for a comprehensive risk assessment
  • Use network security control tools
  • Assess the weak points hackers will target in your network
  • Add an IDPS
  • Secure your access points
  • Enforce more effective passwords
  • Maintain regular software updates
  • Implement a BYOD policy with a virtual private network (VPN)
  • Monitor network traffic with the right tools
  • Provide network security training
  • Stay up to date with the latest threats
  • Implement network segmentation
  • Develop an incident response plan

Let’s dive into the details. 

1. Identify all assets to start securing your network

Knowing your network’s assets is the first step in securing it. Listing every asset helps you understand what needs protection to prioritize security measures accordingly.

Start by identifying all assets within your network, such as:

  • Hardware: Servers, routers, and workstations
  • Software: Operating systems and applications
  • Critical data: Customer information and financial records.

Maintaining a detailed inventory helps in identifying outdated or unpatched software and equipment that might be vulnerable to attacks.

To inventory hardware, use network scanning tools like Nmap to discover devices and create a comprehensive list. For software, utilize software inventory tools such as ManageEngine AssetExplorer to track installed applications and their versions. 

Regular updates to this inventory ensure you stay aware of any changes or additions to the network, which is crucial for ongoing security efforts.

2. Use network security tools

Security tools help detect unusual traffic patterns and suspicious activity, enabling proactive threat management.

Regularly update antivirus and anti-malware programs or systems such as: 

Configure network monitoring tools to alert you about anomalies, such as unusual login attempts or data transfers, which could indicate a breach. Use IDS/IPS systems to not only detect but also prevent potential intrusions by blocking malicious traffic.

3. Assess flaws with penetration testing

Penetration testing identifies vulnerabilities before attackers do. Identifying and addressing vulnerabilities strengthens your network defenses. To effectively conduct penetration testing, first define the scope and objectives. 

For example, a “pentester” or penetration tester can perform three types of tests:

  • Black box testing simulates external attacks with no prior knowledge.
  • White box testing is a thorough examination using full network knowledge.
  • Gray box testing reflects scenarios with hackers who have partial knowledge.

Next, manually try to exploit these weaknesses using tools like:

Document each step and finding thoroughly. After testing, prioritize fixing the identified vulnerabilities based on their potential impact and likelihood of exploitation.

4. Add an IDPS

An Intrusion Detection and Prevention System (IDPS) monitors and protects your network by preventing unauthorized access and detecting suspicious activity.

After you’ve chosen your IDPS, configure it according to your network’s needs. Then continuously update the IDPS to handle new threats.

When configuring an IDPS, define rules and thresholds that match your security policies and typical network behavior. Regularly review the logs and alerts generated by the IDPS to fine-tune these rules and reduce false positives. 

Then don’t forget to integrate the IDPS with your SIEM (Security Information and Event Management) system for centralized monitoring and faster incident response.

5. Secure physical access points

Physical security is crucial for protecting network hardware by ensuring only authorized personnel have access to network hardware. 

  • Start by securing all entry points to critical areas, such as server rooms with keycard access systems. 
  • Implement surveillance cameras to monitor these areas and maintain a log of all entries and exits. 
  • Conduct regular audits to verify that access control lists are up to date and that only authorized personnel have access. 
  • Consider adding biometric access controls for enhanced security.

6. Enforce strong passwords

Strong passwords are vital for securing access to network resources. Better passwords and multi-factor authentication (MFA) significantly reduce the risk of unauthorized access.

To enforce strong passwords:

  • Use complex passwords with numbers and special characters.
  • Update passwords regularly, but avoid overly frequent changes.
  • Use password management tools that ensure compliance with complexity requirements.
  • Educate employees on the importance of creating secure passwords and the risks associated with weak ones. 

7. Enforce a regular software updating cycle

Regular updates protect your network by reducing the risk of exploitation of known weaknesses in your network.

To keep your system secure with the latest updates:

  • Set up automated updates for all software.
  • Conduct regular audits to ensure compliance.
  • Schedule updates during off-peak hours to minimize disruption.

Use patch management tools like SolarWinds Patch Manager to automate and manage software updates. Regularly review your update logs to ensure all systems are compliant and identify any issues that might have arisen from recent patches. 

8. Implement a BYOD policy

A Bring Your Own Device (BYOD) policy manages security risks from personal devices. 

Stop personal devices from becoming weak points in the network by:

  • Creating guidelines for device security, including antivirus software and encryption
  • Requiring regular security checks and updates for personal devices
  • Educating employees about the risks and responsibilities of using personal devices

Use mobile device management (MDM) solutions to enforce these policies and monitor compliance. Provide training sessions to educate employees on the potential risks associated with using personal devices for work purposes and how to mitigate them.

Implement a VPN for users with remote access

Those accessing your network from remote locations can become vulnerable security points for your system unless you encourage them to use a Virtual Private Network (VPN). This is especially critical for organizations with employees who access the network over unsecured public Wi-Fi. 

To set up a VPN, first, choose a reliable VPN provider that meets your organization’s needs. Install the VPN server software on a dedicated server within your network and configure it to create secure tunnels for data transmission.

Next, install VPN client software on all devices that will connect to the network remotely. Ensure that the VPN configuration includes strong encryption protocols like AES-256 and secure authentication methods, such as two-factor authentication (2FA). 

A VPN is important for network security because it encrypts data transmitted between remote users and the corporate network, protecting it from interception by malicious actors. A VPN ensures that data such as login credentials, financial information, and proprietary business data remain confidential and secure. 

By implementing a robust VPN solution, organizations can significantly reduce the risk of data breaches and unauthorized access, maintaining the integrity and confidentiality of their sensitive information.

9. Monitor network traffic with the right tools

Continuous monitoring helps you respond quickly to potential threats and optimize network performance. Configure network traffic monitoring tools to provide real-time data and historical analysis. 

Take these steps to start:

  • Use tools like SolarWinds Network Performance Monitor (NPM) for real-time traffic analysis.
  • Set up alerts for unusual traffic patterns.
  • Regularly review traffic reports to identify trends and potential issues.
  • Set thresholds for key metrics such as bandwidth usage and response times to trigger alerts for anomalies.

This proactive approach enables you to address issues before they impact the network significantly.

10. Conduct regular security training

Security training ensures employees are aware of threats and best practices. Educated employees are less likely to fall victim to phishing and other social engineering attacks.

Cover the latest cybersecurity trends and threats when you:

  • Implement a continuous training program with online courses and workshops.
  • Conduct real-world simulations to test employee responses to threats.
  • Update training materials regularly to reflect new threats.

Use platforms like KnowBe4 to deliver engaging and interactive security training to employees. Include modules on identifying phishing attempts, safe browsing practices, and data protection. You can even conduct regular phishing simulations to test and improve employee awareness and response to real-world threats. 

11. Stay informed about the latest threats

Keeping yourself up-to-date with new threats helps you anticipate them and adjust your security measures proactively.

Take these steps to meet new network challenges:

  • Subscribe to cybersecurity newsletters and follow industry blogs. Follow reputable cybersecurity sources like Meter’s resource guides and the SANS Internet Storm Center. 
  • Participate in relevant forums and threat intelligence platforms. Join cybersecurity communities on platforms like Reddit and LinkedIn to stay updated on the latest threats and best practices.
  • Share threat information with your team to keep everyone informed. Regularly discuss new threats and mitigation strategies with your team to ensure everyone is aware and prepared to handle emerging risks.

12. Implement network segmentation

Network segmentation improves security by isolating critical systems. Segmentation limits the spread of malware and makes it harder for attackers to move within the network.

Use VLANs (Virtual Local Area Networks) to segment your network based on different functions such as finance, HR, and guest access. First, divide the network into segments based on function and sensitivity. Then implement firewalls and access controls between segments.

13. Develop an incident response plan

An incident response plan outlines the steps you’ll take in the event of a security breach or cyberattack. Having a plan before an incident happens can reduce damage and speed up recovery, getting you back to work faster. 

Make sure your plan includes:

  • A response team with clearly defined roles like project manager, IT security specialist, PR representative, legal counsel, and executive sponsor. 
  • Procedures for different scenarios, including data breaches, malware infections, DDoS attacks, and account compromises. 
  • Steps for finding and fixing issues, including emergency contacts, resources, and tools.
  • Practice and rehearsal time with simulations and drills. 
  • Auditing processes like updating contact information, refining procedures, and addressing any gaps. 

When an incident occurs, immediately disconnect affected systems and user accounts. Investigate to find the cause, scope, and impact and remove the threat before restoring systems. Review what worked and what didn’t, then update your plan to improve future responses.

Partner with Meter to secure your network

Introducing Meter—your end-to-end network security solution. 

We’ll take care of network design and installation to give you continuous maintenance and support. Meter supports your network engineers and saves you time in dealing with multiple vendors. 

We combine our expertise, advanced software, and custom-made security hardware to keep your network secure:

  • First-class security network: Our expert security team remotely monitors your network for threats around the clock. Locally, our security appliance prevents unauthorized access and ensures data integrity with features like DNS Security, Malware protection, and VPN capabilities. ‍
  • OpEx only: With Meter, there's no upfront cost. We charge a flat monthly fee based on your square footage, using our own hardware and software to manage your entire network.
  • Upgrades and relocations included: We provide new hardware inclusive of your monthly bill—whether it’s an extra router for redundancy or a new virtualized switch. Similarly, when relocating to a new space, we’ll move your network over for free.
  • 24/7 operations: We’re here to keep your network running smoothly. We provide remote monitoring and support, phone assistance for minor issues, and immediate help for major concerns.

We provide real-time insights and alerts to help you stay secure against any threat. Get a demo of our platform to see how Meter can keep your networks safe and secure—while you focus on running your business.

Special thanks to 

 

for reviewing this post.

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