# What is Wireless Security?

> Wireless security protects wireless networks, devices, communications, and management systems against unauthorized access, disclosure, manipulation, and disruption while preserving availability.

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## Content

It applies to technologies with different architectures and risks, including Wi-Fi, cellular, Bluetooth, fixed wireless, and low-power networks; an enterprise Wi-Fi control does not secure every wireless system.

For an IEEE 802.11 network, security spans device and access-point configuration, authentication appropriate to the deployment, key management, protected radio links, admission policy, segmentation, monitoring, and maintenance. Because signals can extend beyond controlled premises, physical location alone is not a trust boundary, and a connected device still needs appropriate authorization for the resources it reaches.

### Key points

- **Architecture and inventory:** Record approved access points, controllers, clients, service set identifiers, uplinks, management planes, and owners. Identify unauthorized or impersonating infrastructure without assuming every neighboring network is hostile.
- **Access and encryption:** Use current authenticated encryption, appropriate enterprise or personal credentials, protected administrative access, client isolation where needed, and continuing network policy after association.
- **Operations and privacy:** Survey coverage and interference, manage firmware and keys, test failure behavior, and monitor proportionately. Wireless observations can expose device identifiers, movement, and user activity, so collection needs a defined purpose, access controls, retention, and lawful authority.
- **Important limitation:** Strong link encryption protects only the supported radio hop and does not make endpoints, applications, internet destinations, or the wired network trustworthy. Jamming, stolen credentials, rogue access points, unsafe client behavior, and implementation flaws require other controls.

### Related terms

[Wireless network](<https://yellowcube.eu/glossary/wireless-network/>) · [Service set identifier (SSID)](<https://yellowcube.eu/glossary/service-set-identifier/>) · [IEEE 802.1X authentication](<https://yellowcube.eu/glossary/ieee-802-1x-authentication/>) · [Network access control (NAC)](<https://yellowcube.eu/glossary/network-access-control/>) · [Wardriving](<https://yellowcube.eu/glossary/wardriving/>)

### Sources

[IEEE 802.11-2024: Wireless LAN MAC and Physical Layer Specifications](https://standards.ieee.org/ieee/802.11/10548/) · [NIST SP 800-153: Guidelines for Securing Wireless Local Area Networks](https://csrc.nist.gov/pubs/sp/800/153/final)

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