VoIP DDoS Attacks and the Urgent Need for DDoS Protection

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VoIP companies have recently been the target of a series of distributed denial of service (DDoS) attacks around the world with UK-based VoIP providers including VoIP Unlimited and Quebec-based VoIP.ms being affected by aggressive and sustained attacks destabilizing their infrastructure and massively disrupting services.

These DDoS attacks against VoIP providers made headlines and, according to Hackread.com, the attacks on VoIP.ms began on September 16, targeting their DNS name servers and other infrastructure to disrupt their telephony services, thus preventing people from making or receiving calls. . The company’s website remained difficult to access for a few days after the attacks were first acknowledged.

A group known as REvil has claimed responsibility for these DDoS attacks on the VoIP sector, demanding 1 bitcoin (approximately $ 55,000) from VoIP.ms to stop the attacks, but it is not known if it is from the prolific ransomware group of the same name. Unlimited VoIP also claimed to have received a massive ransom demand to stop the attacks.

Increase in DDoS attacks on VoIP in the telecommunications sector

Imperva Research Labs has monitored a significant increase in DDoS incidents targeting the telecommunications industry, which includes VoIP providers, since July 2021. Of particular note is the significant increase in September, which illustrates the scale of DDoS attacks on the VoIP problem facing telecom providers. .

Number of monitored Layer 7 DDoS attacks on telecommunications and ISPs from January to September 2021

The majority (95%) of volumetric network DDoS attacks against the telecommunications industry are UDP attacks, especially UDP waste streams which can have a significant impact on VoIP traffic.

What is VoIP?

VoIP, or Voice over Internet Protocol, is a set of protocols that make phone calls and multimedia sessions available on the Internet. One of the main benefits of using VoIP is the cost savings achieved by making calls over the Internet and eliminating the need for expensive hardware infrastructure. Another benefit of VoIP technology, especially in recent times, is the ease of accessibility thanks to cloud-based VoIP providers that allow teams to stay connected even from a distance.

Speed ​​and latency at the heart of VoIP technology

To operate successfully and provide fast and reliable service, VoIP technology relies on a strong and stable Internet connection. Any disruption in network bandwidth can impact performance and make an organization vulnerable to DDoS attacks over VoIP. On top of that, latency and jitter are also common connection issues for any voice and video based technology. These issues can have a big impact on user experience and call quality.

Every message communicated online, whether by email, video or audio, is broken down into small fragments that are reassembled at their destination to create the original message or a data stream. Latency and jitter occur when these packets reach lags, are lost, or are not reassembled correctly. One of the main causes of latency and jitter is poor internet connection with limited capacity. And what better way to create excessive bandwidth usage on your network than with DDoS attacks over VoIP.

To ensure speed, performance and reliability and to guard against DDoS attacks over VoIP, vendors need robust DDoS protection in place to maintain capacity and minimize load and latency on their networks.

Imperva can mitigate DDoS attacks over VoIP and protect VoIP infrastructure with our 47 PoP global network with a cleaning capacity of over 9 Tbps. Our efficient automated mitigation and evolving threat intelligence, coupled with our proprietary and dedicated cleaning technology, give us sufficient processing and mitigation capability to accurately cancel noise and facilitate the needs that VoIP traffic has. need to support exceptional video and voice quality of service.

Add to that our proximity to hubs and internet exchanges and our ability to clean up over 65 billion packets per second, we can resist and mitigate any attack of any size without introducing high latency or jitter, in less than 3 seconds. for our customers who are still active.

Our recommendation is that all businesses invest in permanent DDoS protection that can mitigate VoIP DDoS attacks and other attacks within seconds.

If your organization has been the target of a DDoS attack or a DDoS ransom threat, we can help you mitigate the attack with minimal disruption to your services and customers. Visit our DDoS Protection page to find out how we do it.

Post DDoS attacks on VoIP and the urgent need for DDoS protection appeared first on Blog.

*** This is a syndicated Security Bloggers Network Blog blog written by Grainne McKeever. Read the original post at: https://www.imperva.com/blog/ddos-attacks-on-voip-and-the-urgent-need-for-ddos-protection/


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