February 9, 2026
How 5G Enables Real-Time Defect Detection
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5G and Wi-Fi are both vital for enterprise networks, but their security approaches differ significantly.
Wi-Fi, while improved with WPA3, still faces challenges like interference, user-based authentication, and limited encryption scope. In contrast, private 5G offers stronger security with device-based authentication (via SIM or eSIM), encrypted end-to-end communication, and controlled licensed spectrum.
Here’s a quick overview of their security differences:
Private 5G is increasingly preferred for industrial environments requiring ultra-reliable connectivity, low latency, and robust security for IoT devices.
Modern Wi-Fi networks now utilise WPA3-Enterprise, which operates with a 192-bit security mode. This ensures stricter cryptographic configurations, especially suited for environments where sensitive data is handled.
Several mechanisms form the backbone of this security framework. The Extensible Authentication Protocol (EAP), a standard since 2002, provides robust authentication. Simultaneous Authentication of Equals (SAE) replaces the outdated Pre-Shared Key method, offering protection against offline dictionary attacks and ensuring forward secrecy. Additionally, Protected Management Frames (PMF) are mandatory under WPA3, safeguarding unicast and multicast management frames from eavesdropping, forging, and de-authentication attacks.
The adoption of WPA3 has been substantial. Around 60% of Cisco Catalyst and Aironet Access Point deployments already use WPA3 security. Moreover, as of 1st July 2020, all new Wi-Fi CERTIFIED devices must support WPA3. For Wi-Fi 6E, operating in the 6 GHz spectrum, WPA3 is a standard requirement. Cisco highlights the importance of these advancements:
Wi-Fi 6 and 5G both provide the security features necessary to serve as the basis of secure wireless communications, together and separately, well into the next decade.
While these features significantly enhance security, challenges remain, particularly in complex enterprise environments.
Despite advancements like WPA3, Wi-Fi networks still face vulnerabilities due to their inherent characteristics. One major issue is that Wi-Fi operates on unlicensed spectrum, making it susceptible to interference and Denial of Service (DoS) attacks. Such disruptions can overwhelm networks, especially in dynamic industrial settings.
Another limitation lies in encryption. Wi-Fi encryption only protects data during wireless transmission. Once the data reaches the wired network, it becomes exposed to potential threats.
Rogue Access Points and "Evil Twin" attacks are also persistent concerns. These attacks involve mimicking legitimate SSIDs to trick devices into connecting. For example, a security assessment of the Eduroam university network revealed that passive attacks could compromise credentials for over one-third of students.
Access control is another weak spot. Wi-Fi often relies on MAC addresses for identification, but these can be spoofed or altered using MAC randomisation on modern devices. Without the activation of 802.11w (Protected Management Frames), management frames remain unprotected, leaving networks vulnerable to de-authentication attacks.
While WPA3 introduces significant improvements, these challenges highlight the need for a layered approach to security in enterprise IT environments.
Private 5G networks come equipped with advanced security features, replacing traditional passwords with SIM- or eSIM-based authentication. This approach significantly reduces the risks of credential theft and brute-force attacks. Greg Kamer from Ericsson Enterprise Wireless Solutions highlights the advantage:
"Physical SIM cards or eSIMs enable physical security measures that effectively eliminate credential-based attacks."
Another key feature is mandatory mutual authentication, which ensures both the device and the network verify each other’s identities. This prevents threats like man-in-the-middle attacks and rogue base stations. Additionally, the Subscription Concealed Identifier (SUCI) encrypts a device’s permanent identity, safeguarding it against identity sniffing and IMSI catching.
Encryption plays a pivotal role in private 5G security. Using 3GPP-defined algorithms, such as 128-bit and 256-bit AES, private 5G networks ensure data confidentiality and integrity. The Security Edge Protection Proxy (SEPP) adds another layer by encrypting signalling traffic end-to-end, even during device roaming. These robust measures address vulnerabilities often seen in Wi-Fi networks.
Private 5G networks go beyond basic security, offering additional features that strengthen enterprise network protection. The Service-Based Architecture (SBA) employs Transport Layer Security (TLS) for internal communications, enabling quick threat detection and dynamic reconfiguration when needed. Massive MIMO beamforming further enhances security by directing signals precisely to target devices, reducing the chances of over-the-air eavesdropping.
Operating on licensed or shared spectrum, such as CBRS, provides a controlled environment. This eliminates the interference and jamming risks commonly associated with Wi-Fi’s unlicensed bands. Network slicing is another standout feature, allowing enterprises to create isolated segments with tailored security policies. This prevents attackers from moving laterally across the network and keeps sensitive systems protected.
Puneet Shetty, VP of Product Management at Celona, encapsulates the advantages:
"5G LANs support zero trust strategies with strong device identification, mutual authentication, granular end-to-end segmentation, and robust encryption."
Wi-Fi vs Private 5G Security Comparison for Enterprise Networks
When it comes to wireless security, the differences between Wi-Fi and private 5G are stark. Wi-Fi’s security measures have evolved over time, often in response to emerging threats, while private 5G was built from the ground up with security as a core feature.
Wi-Fi relies on user-based authentication methods such as usernames, passwords, and certificates under WPA3. This approach demands careful configuration to avoid vulnerabilities. On the other hand, private 5G employs device-based authentication using physical SIMs, eSIMs, or softSIMs, which significantly reduces the risk of credential-based attacks.
Another key distinction lies in spectrum usage. Wi-Fi operates on unlicensed bands (2.4 GHz to 6 GHz), which are prone to interference and jamming. Private 5G, however, uses licensed or shared spectrum, such as CBRS, providing a controlled and secure environment.
| Security Feature | Wi-Fi (WPA3) | Private 5G (3GPP) |
|---|---|---|
| Spectrum Type | Unlicensed (2.4, 5, 6 GHz) | Licensed or Shared (e.g. CBRS) |
| Authentication Method | User-based (passwords, certificates, MFA) | Device-based (physical SIM, eSIM, softSIM) |
| Encryption Strength | 128-bit (Personal), 192-bit (Enterprise) | 128-bit or 256-bit (AES-256, ZUC, SNOW 3G) |
| Encryption Scope | Wireless segment only (device to AP) | End-to-end (AS and NAS layers) |
| Network Segmentation | Software-based (VLANs, SSIDs) | Physical/logical (network slicing, NSSF) |
| Resilience to Attacks | Vulnerable to MITM, rogue APs, interference | High resistance; deterministic performance |
| Enterprise Integration | Compatible with 50+ legacy security tools | Requires specific integration (e.g. Cisco ISE) |
| Management Complexity | Manual configuration (higher error risk) | Centralised orchestration with RBAC |
Wi-Fi encryption is limited to the wireless segment between the device and the access point, often requiring additional tools like VPNs for end-to-end security. In contrast, private 5G encrypts both the radio link and the signalling messages to the core network. It also employs a Security Edge Protection Proxy (SEPP) to ensure end-to-end encryption, even during roaming scenarios.
Private 5G’s architecture not only enhances security but also supports massive device connectivity – up to 1 million devices per square kilometre – while maintaining ultra-low latency of under 10 ms. This combination of scalability, speed, and robust encryption makes private 5G a compelling choice for enterprise IT environments.
This comparison highlights private 5G’s advanced security capabilities, positioning it as a strong contender for integration into enterprise networks.
Firecell’s private 5G solutions are designed to tackle the key security challenges in manufacturing and logistics, building on robust encryption and device-based authentication. Their system integrates seamlessly with existing enterprise LANs via edge appliances connected to Top-of-Rack (TOR) switches, eliminating the need for disruptive infrastructure changes. This approach maintains current security policies while enhancing protection through SIM-based authentication. By using physical SIMs or eSIMs, Firecell provides device-level credentials that sidestep the vulnerabilities associated with traditional password systems.
The architecture guarantees interference-free connectivity using dedicated spectrum, supporting up to one million devices per square kilometre with ultra-low latency of under 10 ms. This ensures consistent performance without the interference issues common in unlicensed Wi-Fi bands. For autonomous robots and Automated Guided Vehicles (AGVs) in warehouses, this means uninterrupted and reliable operations. Additionally, Firecell leverages MicroSlicing technology, which enables application-level segmentation over the air. This translates cellular traffic into specific LAN segmentation rules, effectively blocking lateral movement of potential threats within the network.
These capabilities pave the way for securely deploying private 5G networks while preserving operational efficiency.
To ensure private 5G networks operate securely, certain deployment practices are essential. Physical security is a critical starting point – edge nodes hosting the 5G packet core should be placed in locked cages or restricted-access locations with badged entry systems and activity logs. This safeguards critical infrastructure from unauthorised tampering.
Network segmentation is another key practice. VLANs should be used to separate management, control, and data planes, limiting the impact of potential breaches. Position 5G components within firewall-protected zones and use external firewalls to inspect user traffic. For added isolation, a CBRS domain proxy can be deployed to ensure radios only communicate with local management controllers.
Role-Based Access Control (RBAC) is crucial for administrative interfaces. Assign specific roles, such as master admin or view-only access, to restrict permissions appropriately. Some managed 5G solutions even automate account reviews every 90 days, revoking access unless explicitly reapproved. Real-time monitoring through Intrusion Detection Systems (IDS) helps identify and mitigate threats like Denial of Service (DoS) attacks or unauthorised access attempts before they escalate. Additionally, formal SIM lifecycle management is vital – stolen or misplaced SIMs should be promptly blocked to prevent unauthorised network access.
These practices form a comprehensive framework for deploying private 5G networks securely and effectively.
Wi‑Fi has adapted over time to address security gaps, while 5G was designed with strong security measures from the start. This difference is especially important in industrial settings, where protecting data and systems is a top priority. Private 5G takes a step further by using hardware-based authentication with physical SIMs or eSIMs, significantly reducing the risks associated with password-based vulnerabilities.
Beyond authentication, spectrum usage sets private 5G apart. It relies on licensed or shared CBRS spectrum, which avoids the interference issues often seen with Wi‑Fi. Additionally, network slicing enables Layer 1 traffic isolation, keeping critical industrial data separate from general network traffic. This level of segmentation is far beyond what traditional VLANs can achieve. For mission-critical operations like autonomous mobile robots and AGVs, this ensures controlled and predictable handoffs, managed by the network rather than relying on uncertain transitions.
"Wi‑Fi security evolved over time, while 5G security was built in from day one." – Mehmet Yavuz, Co-founder and CTO, Celona
Industrial environments bring their own challenges – such as heavy machinery, welding equipment, and expansive outdoor areas – that can weaken Wi‑Fi performance. Private 5G, on the other hand, provides up to 10 times the outdoor coverage and ultra-low latency (less than 10 ms), while supporting up to one million connected devices per square kilometre. These features make it a strong solution for large-scale IoT applications in industries like manufacturing, logistics, and port operations.
For businesses focused on strong security and reliable connectivity, private 5G is a practical choice. Firecell’s turnkey private 5G solution integrates smoothly with existing enterprise networks via physical SIMs or eSIMs, delivering secure and uninterrupted connectivity. This approach offers robust protection without requiring major infrastructure changes, making private 5G an increasingly appealing option for industrial environments where reliability and security are essential.
Private 5G networks deliver stronger security for businesses by functioning as completely isolated systems managed internally. This separation helps to limit potential vulnerabilities and lowers the chances of unauthorised access or data breaches.
These networks are built with advanced encryption and authentication measures, ensuring secure communication for handling sensitive information. When combined with on-site edge computing, they add another level of safety by keeping crucial data processing under the direct control of the organisation.
Wi-Fi networks, even with the improvements brought by WPA3, remain vulnerable to several security threats. Among these are rogue access points, which disguise themselves as legitimate networks, credential theft stemming from phishing attacks or weak password habits, and misconfigurations that leave networks open to exploitation.
These issues are particularly alarming in enterprise settings, where critical data and systems are at risk. To combat these threats, organisations should focus on consistent network monitoring, implementing strong authentication measures, and conducting regular security audits. These steps can significantly reduce vulnerabilities and enhance the security of Wi-Fi networks.
Licensed spectrum is a key factor in safeguarding private 5G networks. It enables the use of advanced security protocols, such as encryption and SIM-based authentication, which help to minimise the risk of credential-based attacks. These measures provide an added layer of protection, making enterprise environments more secure.
With licensed spectrum, private 5G networks benefit from exclusive access to specific frequency bands. This exclusivity not only reduces interference but also boosts reliability and strengthens security. For enterprises that demand secure and dependable connectivity, licensed spectrum is an indispensable asset.
