Wireless Broadband Alliance issues new Wi-Fi security guidelines

The Wireless Broadband Alliance (WBA) has released a new Wi-Fi Security Guidelines report. The guidelines define an industry framework designed to strengthen security, privacy and trust across Wi-Fi networks, including public, enterprise, IoT and roaming environments.

Today, Wi-Fi underpins critical digital services for consumers, businesses and connected devices, yet inconsistent or fragmented security practices can expose users and operators to risks ranging from rogue access points and credential theft, to privacy breaches and signalling attacks. The new guidelines aim to help organisations reduce exposure to common Wi-Fi threats, improve user trust, and simplify interoperability across networks and partners. For operators and enterprises, this results in more predictable security outcomes and greater confidence when deploying or scaling Wi-Fi services.

The guidelines address the growing need for carrier-grade security that aligns with user expectations. Built on widely deployed technologies including OpenRoaming and Passpoint, the report sets out a clear, standards-based framework for securing Wi-Fi end-to-end, from device authentication through to physical and backhaul security, Layer-2 protection, RadSec adoption, federation governance and readiness for post-quantum cryptography.

Interoperable connectivity comparable to cellular networks

Implemented together, interoperable measures across authentication, encryption, identity privacy, credential handling, infrastructure, control-plane signalling and federation governance, enable Wi-Fi to deliver secure, privacy-preserving and interoperable connectivity comparable to cellular networks.

The guidelines on securing Wi-Fi networks are designed to achieve a number of goals.

1. Prevent connections to rogue and fake networks

Wi-Fi security starts with trust. The report mandates mutual authentication using 802.1X and strong EAP methods, requiring devices to validate network certificates before sharing credentials. This ensures users only connect to legitimate networks and significantly reduces the risk of evil-twin and rogue AP attacks

2. Protect data over the air

By enforcing WPA2/WPA3-Enterprise with AES encryption and Protected Management Frames (PMF), the report ensures traffic confidentiality and integrity. This prevents passive sniffing, deauthentication attacks, and many man-in-the-middle techniques, bringing Wi-Fi security closer to cellular-grade protection.

3. Preserve user identity privacy without breaking compliance

The report balances privacy and traceability by using anonymous identities, encrypted inner identities, pseudonyms and Chargeable-User-Identity (CUI). This protects personally identifiable information during authentication while still enabling lawful intercept, billing and incident handling when required.

4. Secure credentials end-to-end

Credentials are protected throughout their lifecycle, from device to network to backend systems. The report requires secure OS key stores on devices, hardened credential storage in identity provider systems and tamper-resistant SIM and USIMs for mobile credentials, reducing the risk of large-scale credential theft.

5. Harden the entire access network

Security extends beyond the radio link. The report provides guidance for physical security of access points and controllers, encrypted AP-to-controller links, secure backhaul design and local breakout architectures, ensuring traffic remains protected across the full network path.

6. Secure AAA and roaming signalling

Recognising that the control plane is often overlooked, the report strongly recommends RADIUS over TLS or DTLS for all AAA and roaming exchanges. This protects authentication and accounting traffic from interception or manipulation, aligning with OpenRoaming and WRIX requirements.

7. Add Layer-2 protections against lateral attacks

To limit damage even if a malicious device connects, the report promotes Layer-2 traffic inspection, client isolation, proxy ARP and multicast and broadcast controls, reducing client-to-client attacks such as ARP spoofing and broadcast abuse.

8. Enforce security through federation and governance

Security is reinforced not only technically but operationally. Through OpenRoaming and the WRIX legal framework, security requirements, responsibilities and privacy obligations are consistently enforced across operators, identity providers and hubs.

Security FAQ

The WBA has also created a Wi-Fi Security FAQ alongside the new guidelines. It gives users, enterprises and network operators a clear and accessible understanding of how modern Wi-Fi security works and can be seen at: https://wballiance.com/wi-fi-security-general-audience-faq.

“Today, Wi-Fi underpins critical connectivity for consumers, enterprises and IoT at global scale,” said Tiago Rodrigues, President and CEO of the Wireless Broadband Alliance. “These guidelines show how proven standards and best practices can be applied consistently to deliver secure, privacy-preserving and interoperable Wi-Fi experiences. By aligning security across devices and networks, Wi-Fi achieves parity with cellular in security capability and confidence.”

The Wi-Fi Security Guidelines report is available to download at https://wballiance.com/wba-wi-fi-security-guidelines/.

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