Executive Report

Voice Network Threat Survey 2023

survey Background

The cybersecurity landscape is one that is constantly morphing in ways that enterprises have but two choices: get up to par, or get left behind. In last year’s survey, we highlighted how nefarious and nuisance calls were escalating at a time when industry experts weren’t fully prepared to intervene. So, has the industry caught up? Read on to learn more!

Voice Network Traffic is an under-appreciated threat vector.

Can you imagine your email inbox without email filtering? Over the years, a significant investment has been made to research, test and strengthen measures that both protect email, and limit bad actors’ access to one of our most important resources: our people. So why has the ubiquitous phone call lagged behind when it comes to protective measures? This survey was created to help bridge the gap for the growing threat of Unwanted Voice Traffic.

If you are interested in learning about our experience in collecting this year’s data set, click here.

what are we trying to find out?

With over 300 responses from IT and Security industry experts, the second annual Voice Network Threat Survey was created to shine a light on the industry’s perception of a burgeoning threat vector – Voice – as well as the steps organizations are taking to combat an evolving list of threats to this most critical communication channel. Are companies aware of the scope of the issue? Are they taking appropriate measures to protect themselves and their employees?

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Framing the Issue:  Industry Metrics


AVG Unwanted Voice Traffic in Enterprise Networks

– Index of Unwanted Voice Traffic, Mutare


Average Vishing Attack Success Rate

– How to Attack Yourself Better in 2021, Group IB


Fraud Losses Due to Voice Channel

– 2020 Press Release, Federal Trade Commision (FTC)


Percent of US Organizations Faced with Vishing Attacks 

– 2022 State of the Phish, proofpoint