👺The Hidden Dangers of Mobile Networks in Business-Critical Systems | Why Serious Cybersecurity Means No LTE🤥

When it comes to cybersecurity, not all connectivity options are created equal. In South Africa, mobile networks have become the primary conduit for cyberattacks. Businesses relying on LTE for critical systems or as branch links are exposing themselves to significant risks, as evidenced by alarming data from Cloudflare's RADAR. This data reveals that mobile networks are not just part of the problem—they dominate it.

The leading mobile network provider in South Africa generates 318% more cyberattacks than its closest rural competitor. These staggering statistics underscore a critical failure: mobile operators prioritise subscriber growth over robust security measures. In essence, they function as SIM jockeys rather than serious technology providers. For any organisation with serious cybersecurity goals, using mobile networks for business-critical systems is a risk too great to ignore.

Why Mobile Networks Are a Cybersecurity Liability

1. Mobile Networks | The Epicentre of Cyberattacks

The Cloudflare RADAR data leaves no room for doubt: mobile networks in South Africa are a hotbed for malicious activity. Contributing factors include:

• Millions of Dirty Devices: Mobile operators have millions of compromised smartphones, IoT devices, and unpatched systems on their networks. Each infected device becomes a launchpad for botnets, phishing, or DDoS attacks.

• Lack of Security Priority: Mobile operators invest heavily in network expansion but lag in implementing strong, proactive cybersecurity measures. Their networks are built for accessibility, not resilience.

2. Insecure LTE Connections

LTE connections, while convenient, offer minimal protection against cyberattacks for business-critical systems. Risks include:

• Lack of Isolation: Unlike dedicated fibre or microwave links, LTE connections operate on shared, public infrastructure, increasing the risk of eavesdropping and data breaches.

• Compromised Routing: Attackers frequently exploit vulnerabilities in mobile network routing, hijacking or redirecting traffic.

• Dynamic IP Addresses: Many LTE connections use dynamically assigned IPs, complicating efforts to secure communications.

3. Inherent Risks for Specific Applications

VoIP over LTE

• VoIP systems are latency-sensitive. LTE networks often suffer from inconsistent performance, leading to dropped calls, jitter, or echo.

• Attackers can exploit these vulnerabilities through SIP-based attacks, call fraud, or denial-of-service targeting VoIP servers.

Branch Links Over LTE

• A branch connected via LTE lacks the bandwidth consistency of broadband or fibre, leading to degraded application performance.

• LTE’s security gaps expose branch systems to man-in-the-middle attacks, data theft, or malware propagation.

Why Secure Overlays Are Essential

The SD-WAN Advantage

A business serious about cybersecurity needs a robust alternative to mobile networks. SD-WAN provides a secure overlay that mitigates the risks of cyberattacks while ensuring high availability and performance. Key benefits include:

• Link Aggregation: SD-WAN allows businesses to combine multiple broadband and microwave links, delivering redundancy and improved bandwidth without relying solely on LTE.

• Encrypted Communication: SD-WAN uses strong encryption to protect traffic across all links, even if LTE is used as a backup.

• Centralised Security Policies: Advanced SD-WAN solutions can implement ACLs, firewall rules, and intrusion detection/prevention measures across the network.

Eliminating Dirty Devices' Impact

Secure overlays, such as those facilitated by SD-WAN, isolate traffic from the compromised devices found on mobile networks. This significantly reduces the risk of DDoS, IP spoofing, and other common attacks originating from mobile networks.

Tailored for Business Continuity

SD-WAN ensures that even in rural areas, where mobile connectivity may be unavoidable, businesses can integrate LTE as a backup link rather than a primary connection. By aggregating links, SD-WAN ensures uptime without sacrificing security.

Wrap

South Africa's mobile networks are ill-suited for business-critical applications due to their role as a primary source of cyberattacks. For businesses serious about cybersecurity, relying on LTE is a gamble that compromises both operational integrity and data security.

The solution lies in adopting SD-WAN, which facilitates secure overlays, link aggregation, and robust traffic encryption. By choosing SD-WAN over LTE-centric connectivity, businesses can protect themselves from the inherent risks of mobile networks while ensuring reliable and high-performance connectivity.

In today’s threat landscape, the message is clear: if your business values cybersecurity, LTE cannot be your backbone—it must be a backup and then only as a last resort with a device that is better than a firewall from Silicon Valley!

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