As the digital landscape continues to evolve, the reliance on wireless networks within enterprises has grown exponentially. WiFi has become a critical infrastructure component, enabling seamless connectivity and enhancing productivity. However, with the increase in cyber threats and the growing sophistication of attacks, the need for robust enterprise WiFi security has become paramount.

The Evolution of Enterprise WiFi Security

WEP: The Early Days

In the early 2000s, Wired Equivalent Privacy (WEP) was the dominant security protocol for WiFi networks. However, it quickly became evident that WEP was vulnerable to various attacks, including packet sniffing and brute-force attacks. WEP’s weaknesses paved the way for the development of more secure WiFi protocols.

WPA: Strengthening Security

To address the vulnerabilities of WEP, WiFi Protected Access (WPA) was introduced. WPA provided enhanced security through the implementation of stronger encryption algorithms, such as Temporal Key Integrity Protocol (TKIP). Despite these improvements, WPA still had certain limitations, including susceptibility to dictionary attacks.

WPA2: Industry Standard

Recognizing the need for a more robust security solution, WPA2 was introduced as the industry standard in 2004. WPA2 implemented the Advanced Encryption Standard (AES), offering stronger encryption and better protection against attacks. It also introduced the use of Pre-Shared Key (PSK) for authentication, improving the overall security of enterprise WiFi networks.

802.1X and RADIUS: Authentication Enhancements

To further enhance security, the integration of the 802.1X authentication framework and Remote Authentication Dial-In User Service (RADIUS) servers became prevalent. This combination introduced centralized user authentication, authorization, and accounting, ensuring that only authorized individuals could access the network. It also facilitated the implementation of additional security measures, such as certificate-based authentication and dynamic encryption key assignment.

WPA3: Next-Generation Security

With the increasing sophistication of cyber attacks, the WiFi Alliance introduced WPA3 in 2018 to bolster enterprise WiFi security. WPA3 brings several enhancements, including individualized data encryption to protect data even if the network’s password is compromised. It also provides protection against offline dictionary attacks and simplifies the process of connecting IoT devices securely to enterprise networks.

Multi-Factor Authentication (MFA): Strengthening Access Control

As part of a comprehensive security strategy, many enterprises have adopted Multi-Factor Authentication (MFA) for WiFi networks. MFA adds an extra layer of security by requiring users to provide multiple forms of verification, such as passwords, biometrics, or security tokens. This approach significantly reduces the risk of unauthorized access, even if the user’s credentials are compromised.

Network Segmentation and Intrusion Detection Systems (IDS)

Enterprise WiFi security has expanded beyond encryption and authentication techniques. Network segmentation helps isolate different parts of the network, preventing lateral movement by attackers. Intrusion Detection Systems (IDS) monitor network traffic, detecting and alerting administrators to potential security breaches. These measures enhance the overall resilience of enterprise WiFi networks.

Today, employees can use their laptops or mobile devices from anywhere within your corporate building to access your WiFi network. Convenience is often coupled with risk however, and many  WiFi networks these days simply do not have the appropriate security measures needed, making them susceptible to cyber threats that put your company’s data and customer information at risk.  

However, you can protect your network and sensitive data by using some of these best practices for WiFi network security. We’ll focus on the four most effective methods for WiFi security: 

4 Best Practices for Enterprise WiFi Security

When it comes to WiFi security and preventing unauthorized access and data loss, businesses must take the time to thoroughly plan out a comprehensive strategy. Although the degree of protection needed, and the available budget determine the final security measures, the essential guidelines listed below can be helpful for getting started. 

I. Maintain User Segregation Between Internal and Guest Users

When guests come to your place of business, they will most likely want access to your WiFi network. While giving this to your customers seems a perk, you must maintain a barrier between their access and that of your employees. If they do not need access to any company’s resources, it is beneficial to your company’s safety to ensure that they are kept separate. 

II. Carefully Select Your SSID Name

Your SSID shouldn’t advertise your company. Organizations often expose their networks to attackers, and in densely inhabited areas the risks of a hack are much higher. Even with an unassuming SSID, hackers may locate your WiFi network. Yet, having a safe name increases the difficulty of hacking a network. Note that banal SSIDs assist WiFi security but aren’t a must-have. 

III. Utilize Intrusion Prevention Systems for WiFi Networks

Include a wireless intrusion prevention system (IPS) inside your Wi-Fi security to protect your system. These devices monitor and detect targeted WLAN cyberattacks that utilize packet floods, ARP (Address Resolution Protocol), spoofing, and malicious broadcasts. 

Snort refers to a network intrusion prevention system that can swiftly detect and handle potential threats. as a preemptive approach to securing your network. As with intrusion detection, these systems also help monitor network traffic. Depending on your network administrator’s security controls, they can rapidly respond  against a prospective exploit. 

IV. Mobile Device Management (MDM)

Mobile device management (MDM) allows you isolate and manage access for numerous mobile devices which protects your corporate network and data in numerous ways, including: 

• Monitoring regulatory compliance activities. 
• Remotely deactivate or disconnect illegal users and their devices. 
• Centralize device update auditing. 
• Protect mobile devices with your company’s security protocols.