July 15, 2024


Sapiens Digital

VoIP Security Risks and How to Mitigate Them

3 min read

The security of your business VoIP system depends on a combination of hardware and software. Check that your chosen provider has strong password policies and regularly scans vulnerabilities.

Eavesdropping attacks and other threats can expose data, including company VoIP usernames and passwords, phone numbers, call recordings, customer lists, billing information, and marketing sequences. Check your chosen provider’s compliance with government and industry standards here.

Malware and Virus Attacks

As any business that uses VoIP systems knows, malware attacks are a big threat to the technology. These attacks can steal passwords, delete files, or tie up your computers and phones so they can’t work. The good news is that you can protect your systems from these attacks with simple cybersecurity best practices. Ensure your employees use strong, varied passwords on all their devices and regularly update their software.

Additionally, ensure you have a Virtual Private Network (VPN) to secure your team’s remote devices. VPNs encrypt all calls and data, making it much more difficult for hackers to access your VoIP system or steal information.

Also, take advantage of STIR/SHAKEN, a new caller ID standard that will prevent spoofing and reduce the number of unwanted robocalls you receive. This will increase customer confidence and make your business more trustworthy for everyone involved. A security breach could hurt your company’s reputation and lead to lost business.

Phreak Attacks

VoIP systems are a great way for businesses to connect with clients and employees, but they’re not immune to cyberattacks. Some of the top threats include phishing, vishing, and Denial of Service attacks.

These attacks use spoofed caller IDs to trick victims into divulging sensitive information. This can lead to identity theft and corporate sabotage.

Another type of phreaking involves stealing usernames and passwords to access VoIP systems. This can lead to expensive long-distance charges and unauthorized account use.

To mitigate these attacks, you can deploy Session Border Controllers to provide a secure gateway between your network and the Internet. You can also protect against these attacks by implementing end-to-end encryption and consistent network monitoring that alerts you to suspicious login attempts or unfamiliar devices. These measures will help you keep hackers out of your voice communications network. It’s also crucial to perform regular security audits to identify and fix vulnerabilities before they become a problem.

Packet Sniffing

During VoIP call transmission, voice data packets get scrambled into hard-to-read formats to travel across the Internet. Hackers can intercept this information and steal valuable data, including usernames, passwords, bank details, and other information relayed in calls. This is known as packet sniffing or a black hole attack.

Packet sniffing attacks affect VoIP service quality by injecting irrelevant noise packets into call streams. This leads to long silences and garbled rings. Fortunately, this can be prevented by using a VoIP provider that uses an encryption protocol like SRTP.

As the number of cyberattacks on small businesses increases, businesses must invest in VoIP security to avoid data breaches and financial damage. Moreover, they must consider how their current VoIP provider handles network issues, upgrades, and uptime. Finding a provider that offers PCI, HIPAA, and other compliance standards and has a reliable customer support team is important. Additionally, they should have a solid network infrastructure that supports cloud communications.

Denial of Service Attacks

A distributed denial of service attack (DDoS) on VoIP systems works by flooding the system with redundant SIP call-signaling messages. This takes up bandwidth and can slow down or stop the system altogether. This type of attack can also help hackers gain access to system administrative tools.

A business VoIP system needs a secure network like any other business application or platform. This includes implementing security functions that prevent hackers from accessing staff and client data. It’s also important to monitor data for out-of-the-ordinary trends and behavior.

Viruses, malware, packet sniffing, and phreaking are some of the most common VoIP security risks. To mitigate these threats, implement a robust firewall that filters incoming information for malicious content. It’s also a good idea to use a separate internet connection for VoIP phones rather than sharing the same one with other business applications. This helps prevent problems in the VoIP system from impacting other data networks.

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