9 VoIP Security Risks and How To Keep Your VoIP Phone System Safe

Share This Post
Share on facebook
Share on linkedin
Share on twitter
Time to Read | 6 mins

VoIP security risks are part of the move into a VoIP system. If you’re considering it, it’s normal to have concerns after assessing the potential dangers of VoIP hacking. 

But the same assessment should also show you that the benefits far outweigh the risks. 

Lower costs, improved communication, and better productivity are just a few advantages of an internet phone. And while these threats can be serious, there are certainly solutions to the problems they pose. 

The good news is that VoIP security against cyberattacks can be easily managed and solved, especially with the right VoIP provider. 

9 Common VoIP Security Risks

Most threats to VoIP security can be minor, while some are more dangerous. Nevertheless, any compromise in the security of your VoIP phone system can be detrimental to your business’ reputation and reliability.

To give you a clearer picture of the kind of protection you need, it’s good to have an understanding of the different VoIP security threats and how they can affect your business. 

1. Spam

Spamming is one of the most common security threats. 

This security threat involves sending a massive number of unsolicited messages or calls, and in worst-case scenarios, it may cause your VoIP phone to freeze. This kind of invasion has a significant impact on productivity. 

Imagine your employees handling hundreds of calls and messages from hackers at a time. This takes time away from completing tasks or communicating with real customers.

2. Malware

Because VoIP phones run internet-based applications, they can be vulnerable to some security risks like malware, viruses, and spyware. It’s similar to how our laptops or PCs can get infected.

Without the right VoIP security, malware can hijack your data network, destroy data, send spam, and steal critical business information. 

3. Denial of Service (DOS)

One of the more serious security risks, DOS occurs when hackers flood your VoIP network with hundreds of calls and messages, similar to how spamming works. The difference is that this form of VoIP hacking intends to occupy enough bandwidth to slow down incoming and outgoing traffic.

This denies your network of the bandwidth you need to run your business efficiently. Even worse, hackers can make expensive phone calls charged to your account, access servers, and steal critical business information.

4. Phishing

Phishing happens when a hacker pretends to be from a company or organisation you have ties with. The hacker sends you an email, voice mail, or text message with the intent to steal personally identifiable information from you.

Security risks like phishing and vishing are similar as they target the individual instead of the business.

5. Vishing

If phishing is internet fraud via email, vishing is fraud through voice calls.

By using an ID spoofing trick, hackers call and pretend to work for well-known businesses like banks to trick victims into surrendering sensitive information, usually the financial kind.

6. Service Theft

When data thieves get into your system, they use your VoIP service for their purposes and let you pay for the bill, also known as toll fraud. VoIP security threats like this can run up your account and will cost you money due to the high volume of international calls made by the hackers.

There’s also no stopping them from stealing your data once they’re in.

7. Call Hijacking

A VoIP phone call gets hijacked when cybercriminals send “noise packets” into the network to change the call’s encryption key. This allows them to eavesdrop and steal personal and business information right under your nose.

8. Call Tampering

Call tampering is one of the minor VoIP security threats. It’s no different from a poor-quality phone call where it’s hard for both sides to hear and talk to each other. This is how to call tampering works.

Hackers attack the system to degrade call quality, resulting in delays, static noise, or even periods of prolonged silence.

9. Man-in-the-Middle Attacks

The Man-in-the-Middle is the unwanted third party in the conversation. The hacker inserts himself in the middle of the VoIP call and pretends to be the person at the other end of the line. They do this by making themselves the proxy/relay point in the VoIP network.

As a result, they can intercept information being shared by either party without you knowing about it.

5 VoIP Security Measures to Consider in a VoIP Provider

As we previously mentioned, all the VoIP security threats we covered can be solved and prevented with the right VoIP provider. Here are five of the most important VoIP security features you need to look for when choosing your provider:

1. VPN Connection

Using a Virtual Private Network (VPN) connection lets you connect to the internet using the VPN provider’s server. This adds another layer of security from VoIP security threats and it’s recommended when you have a remote work setup.

2. Encryption

Even when stolen, encrypted data can be useless to hackers. So it’s essential to consider a VoIP provider that includes encryption in all your VoIP communication to protect data shared through an internet phone. It’s also one of the easiest ways to combat any security risks.

3. Clustered Firewalls

Clustering firewalls give you high network availability and a stable network connection. Think of it as having thicker walls that protect your network from any security threats. The thicker the walls, the harder for intruders to get in.

4. Call Routes

This security measure works by configuring all outgoing data to be directed to a specific set of routes only. This minimises the threats to VoIP security because you control where your data goes and what routes it uses. 

5. Information Security Frameworks

It’s essential to have an information security framework designed to support your network security protocols. Having the right equipment and a competent team to manage your system decreases the impact of VoIP security threats. 

5 Tips to Keep VoIP System Secured

If you’re an existing VoIP user or considering switching to VoIP phones to level up your business, a secure network is your best bet against VoIP security threats. Depending on the nature of your business, you may need more robust measures against the threats on the security of your VoIP system. 

Either way, the important thing is to have the right security protocols that work for you. Here are five tips to protect your network from possible threats:

1. Set up private LANs

Setting up a private local area network (LAN) gives you more control because internet access is by invite only. This minimises risks by making it easier to detect uninvited guests.

If your business handles confidential, sensitive, or financial data, a private LAN is a non-negotiable requirement. 

2. Use firewalls

Installing firewalls is like having a towering wall surrounding your property. It protects you from many external attacks. It’s a basic but effective deterrent of VoIP security risks.

A proven and straightforward measure against hacking is to have firewalls on your ports too. 

A firewall is also similar to having a security checkpoint at every entry. This way, you can filter and control the traffic coming in and out of your network and can easily prevent the dangers of security risks on your VoIP system.

3. Enable strong authentication

Weak passwords invite a lot of security risks. Immediately change the default passwords that come with your new VoIP network. A good practice is to have stronger codes that are long and use a mix of upper- and lowercase letters and numbers. 

Also, make it part of your protocol to change passcodes every 60 to 90 days.

If you want stronger authentication, implement a Challenge-Handshake Authentication Protocol (CHAP), which adds a challenge question that needs to be answered correctly to access the network.

4. Build security layers

Because of the varying security threats, one layer of security isn’t enough to defend VoIP systems against hacking. Having multiple security layers against security threats makes it complicated and challenging for cybercriminals to attack your network. 

For multi-level protection, consider using a VPN and a private LAN, using anti-virus software and updated security patches, and many others. It’s a combination of all or some of the measures listed above to guard against the different security risks.

This is where choosing the right VoIP service provider becomes important.

5. Choose a secure VoIP provider

Choosing the right VoIP provider is like choosing the right business partner. The right partner helps your business grow, can save you a lot of money, prevent major headaches, and even help establish consumer trust for your brand. 

Furthermore, the right VoIP provider must be able to provide quality and simple-to-use VoIP services, offer defence from VoIP security threats, and give you the peace of mind you need to run your business efficiently.

This is where VoIPTech Solutions can help you. 

Keep Your VoIP Phone System Safe with VoIPTech

VoIPTech Solutions provide VoIP-based communication services and unified communication products. Depending on what you need, you have two cost-effective options: 

  • Wave for a more basic plan
  • Communicator for a more comprehensive communication package

They also offer fast and straightforward installation of the VoIP phone system. And more importantly, they can establish the safeguards you need against the security risks on your VoIP phones for your peace of mind.

VoIP is a big step up from traditional phone systems, but you can’t enjoy its benefits with poor network security. It’s a good thing a provider like VoIPTech Solutions can help your business grow with high-quality and secure VoIP products.

So don’t hesitate. Install and secure your VoIP phone system now with VoIPTech Solutions. Call us on 0203 745 0201 or send us an email at [email protected]

Subscribe To Our Newsletter

Get updates and learn from the best

More To Explore

Do You Want To Boost Your Business?

drop us a line and keep in touch
two women listening to their co-worker