VoIP security is an issue that needs to be a priority, no matter the size of the company. Any VoIP provider must make sure their network is not vulnerable. If there is not much in terms of protection, you and your company could be vulnerable in a myriad of ways.
Potential threats are varied. And they oftentimes overlap with common internet security threats such as spam, phishing, and malware. It’s likely that precautions are already in place for these. A wider variety of preventative measures is needed for threats more unique to the platform. Let’s look at a few of VoIP security’s biggest threats first.
Threats to VoIP Security
- Call Hijacking: Most commonly used by cyber criminals taking advantage of free Wi-Fi hotspots, the hacker is able to hijack the call and obtain sensitive information.
- Man in the Middle Attacks: By intercepting the call and rerouting it through their servers, this gives the hacker the ability to inject malware into the caller’s system.
- Denial of Service (DoS): Unwanted call-signaling messages flood and weaken the service. A greater frequency of prematurely dropped calls then occur. Once the user is denied service, the hacker gets remote control of the administrative facilities of the system.
Necessary VoIP Security Measures
Similar to the threats themselves, necessary VoIP security protocols have overlap that is standard in internet security. It is crucial for every VoIP network to have a firewall, an intrusion prevention system, and geo-blocking. This should be standard for any provider.
Call behavior algorithms assess abnormal patterns. If deemed improper or fraudulent, they can stop the call. Access lists are able to identify a static IP and prevent identity fraud. And VPN connections hosts the customers with the VoIP provider only via an encrypted link.
Each of these measures adeptly handles the threats to VoIP security. These should be standard for any network. Contact your provider to make sure you are protected.