Small and medium-sized businesses (SMBs) often assume they’re too small to be on a hacker’s radar. The truth is cybercriminals don’t discriminate. SMBs are constantly targeted because they often lack the robust security measures larger corporations implement.
Thankfully, evading cyberthreats isn’t out of reach. By adopting smart and proactive network security measures, SMBs like yours can safeguard systems and data without breaking the bank. This guide outlines 10 simple yet essential best practices you can do to protect your business from network vulnerabilities.
Perform a thorough network audit
Before you can secure your network, you need to know what you're securing. A network audit is like taking inventory of items in your store — it lets you know what's there, how valuable they are, and which ones need more protection.
Conduct a comprehensive audit to:
- Identify all devices connected to your network (e.g., computers, printers, smartphones).
- Map out software used across your SMB.
- Detect potential security gaps such as outdated software or unknown devices.
For example, a forgotten laptop used to access sensitive business files could become an entry point for cybercriminals. A proper network audit ensures nothing slips through the cracks.
Deploy essential network and security devices
Investing in the right tools is vital for building a secure network. Every SMB should include these in their arsenal:
- Firewalls act as the first line of defense, blocking unauthorized access to your network. Options include hardware-based firewalls and software-based solutions.
- Intrusion detection/prevention systems monitor traffic for suspicious activity or attacks and deploy countermeasures quickly to mitigate risks.
- Virtual private networks create secure, encrypted connections between remote users and the company's network.
Disable unnecessary file sharing features
File sharing can be a convenience when collaborating within a team, but it comes with serious risks when left unchecked. Open file sharing can expose sensitive business information to those who shouldn’t have access. To secure file sharing:
- Disable file sharing features for employees and devices where it isn’t needed.
- Use the principle of least privilege so that employees only have access to the information they need.
- Regularly review and update access permissions to ensure they are appropriate.
Update antivirus and anti-malware software
No matter how technologically advanced your antivirus or anti-malware is, it's useless if not updated. New malware variants surface constantly, and only up-to-date software can provide the protection you need. Follow these tips:
- Choose reputable antivirus and anti-malware programs.
- Enable automatic updates so you're always protected against the latest threats.
- Schedule regular scans to catch potential infections early.
Secure your routers
Your router is essentially the door to your network. If it isn’t locked tight, intruders will find a way in. Minimize risks by:
- Changing default passwords on routers as these are often publicly known
- Updating router firmware regularly to patch vulnerabilities
- Enabling WPA3 encryption, the most secure option available today
- Disabling remote router access unless absolutely necessary
Use private IP addresses
Every device on the internet has an IP address, which is like a digital ID. Private IP addresses are used within a closed network, such as your home or office, and cannot be accessed from the internet, providing an extra layer of security. You can obtain private IP addresses from your router’s configuration page.
Implement network segmentation and segregation
Not all traffic in your network needs to intermingle. Network segmentation breaks your network into smaller, isolated segments. This is important because:
- It restricts access within your network, limiting what an attacker can access in the event of a breach.
- Critical systems, such as payment processing servers, can be isolated from less secure networks, such as your guest Wi-Fi.
- It allows for easier monitoring and management of network traffic.
Network segregation takes this concept a step further by separating different types of traffic into their own networks. For example, you could have separate networks for employee devices, guest devices, and IoT devices. This can greatly reduce the risk of a security breach, as it limits access even within your segmented network.
Prioritize backups and disaster recovery
No security system is foolproof, so it’s essential to prepare for the worst. Regular backups keep your data safe even in the event of a breach or ransomware attack. Here’s what you should do:
- Schedule automated, frequent backups for critical data.
- Store backups off site or in secure cloud storage options.
- Regularly test your disaster recovery plan to confirm you're prepared to act quickly if needed.
Establish a network security maintenance system
Network security is not a one-and-done task. It requires ongoing maintenance to stay ahead of emerging threats. Routine duties include:
- Regular patching and updates for all devices and software
- Frequent vulnerability scanning to detect new issues
- Proactive monitoring to spot unusual activity
- Developing and practicing incident response plans so you’re ready to act in case of a breach
Create a security-centered culture
Your employees are your greatest assets, but they can also be your weakest link. Build a culture where security is second nature. Some steps you can take include:
- Conducting regular cybersecurity awareness training and simulations to keep employees informed and vigilant
- Implementing strong password policies and encouraging frequent updates
- Providing secure remote access options for employees working outside of the office
Remember, a strong security culture starts from the top down. Make sure your leadership team is fully committed to prioritizing and investing in cybersecurity initiatives.
Every business is a potential target for cybercriminals, but proactive measures can protect your SMB from becoming the next victim. By following these 10 best practices, you’ll strengthen your network, gain peace of mind, and demonstrate responsibility to your customers.
If managing network security feels daunting, don’t worry. Our team of experts at outsourceIT specializes in helping businesses like yours build and maintain secure networks. Reach out today to learn more about how we can support your SMB.
