the most long-lasting DDoS attack was 5,698 minutes. This equals to 4 days of non-stop attacking. Notably, the key issue with DDoS incidents for the telecom sector is a ripple effect an attack of such magnitude can cause.
How Telcos Can Protect Against DDoS Attacks
Set up robust Access control lists (ACL) – your first line of defense. Note, however, that ACL has a scaling issue. A rapid increase of temporary ACLs, built to resist a large-scale attack, can have a major performance impact on different router hardware and software, making the overall management rather challenging. Thus, it’s best to write several scripts for automatic router configuration and ACL management.
Implement black hole scrubbing – a variation of the block hole filtering technique. In this case, the traffic is redirected to a different physical interface – a scrubbing center – that can weed out the good traffic from the malicious one. A number of software vendors offer such solutions.
Real-time DDoS monitoring is a must. The best-of-breed tools are now powered with machine learning functionality, meaning their detection accuracy progressively increases over time.
IoT Network Security
In 2021, Gartner estimates that some 25 billion IoT devices will be connected to telecom networks. Accommodating such an increased volume of data is just one part of the challenge for telecom security though. Preventing unauthorized access, securing data transmissions and ensuring smooth monitoring of a much larger attack surface are the key security challenges for telcos.
Despite low adoption, IoT devices have already proven to present both internal and external threats to cybersecurity. First of all, the device itself can be exposed to various cyber threats and vulnerabilities due to manufacturing issues that might hinder a telecom security system.
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