Breaking News
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Walmart Accused of Creating Voiceprints From Customer Service Calls
Two Illinois residents, Carol J. Krupke and Jeanne Thomas, have filed a proposed class action lawsuit against Walmart Inc., accusing the retail giant of illegally collecting and storing customers’ voiceprints through its customer service phone lines without proper consent under state law.
According to the complaint filed Aug. 4, 2026, in the Northern District of Illinois, an artificial intelligence system allegedly records the audio when customers call a Walmart store and isolates the speaker’s vocal characteristics. The plaintiffs claim the AI measures identifiers including pitch, cadence, tone, and frequency spectra to create a mathematical template of the caller’s voice.
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Key Points that Matter
- Voice biometrics create a different dimension of voice risk, raising questions about how organizations collect, use, protect, and govern uniquely identifiable voice information.
- Voice security is increasingly a legal and compliance issue, not simply a telecommunications concern. Lawsuits involving voiceprints reinforce the potential consequences of inadequate governance and controls.
- Organizations need a comprehensive approach to the voice channel. Protecting voice communications requires securing both the interactions themselves and the sensitive information those interactions can generate.
You Can Stop Voice-Based Threats
The Voice Channel has become the most exploited pathway for threat actors. Voice Security is no longer a nice to have, but a critical mandate.
Mutare’s Voice Security Platform defends the voice channel as critical infrastructure. Operating as a technical control at the network edge, it stops vishing, social engineering, spoofed calls, spam storms, and GenAI-powered attacks.
We understand that every organization is at a different stage of its Voice Security journey.
Some are just beginning to understand the risks. Others are evaluating solutions or validating technologies. Take a moment to check out Test Drive to choose your path towards understanding the voice security landscape and learning about a comprehensive defense solution.
Learn More About Voice Security
We’ve curated the latest information and events about Voice Security:
Articles
AI Phone Agents Have a Security Problem
Understanding how Unwanted Voice Traffic Consumes AI Resources, Increases Risk and Undermines the Customer Experience
Voice Security for Webex Calling: From Call Reputation to Policy-Driven Protection
Why protecting enterprise voice requires more than identifying risky calls. It requires the intelligence and control to determine what happens next.
What the 2026 Voice Threat Survey Reveals About the Future of Cybersecurity
Five emerging trends are reshaping enterprise cybersecurity, and they all point to one conclusion: Voice Security is becoming an essential component of a modern cyber defense strategy.
Events
Webinar: Enterprise Voice Security for Cisco
In this live session, attendees will explore how escalating voice threats are targeting Cisco UC, Webex Calling, and Webex Contact Center infrastructures.
WEBINAR: AI-Ready Voice Security
What was once limited to nuisance robocalls has evolved into a continuous stream of unwanted voice traffic, now amplified by automation, spoofing, and AI-driven attack campaigns.
ViVE, Feb 2026, Los Angeles, CA
Please join us in Los Angeles February 22-25 and connect with a member of the Mutare Team to discuss patient experience, patient care, and risk management.
Case Studies
Real Use Case Voice Traffic Filter Energy – 140
This customer was experiencing a significant increase in disruptions and potential threats resulting from spam calls with spoofed numbers.
Real Use Case Voice Traffic Filter Finance – 139
This organization was experiencing an unacceptably large amount of spam phone calls, including robocalls, dead air calls, and detected nefarious scam callers.
Real Use Case Voice Traffic Filter Finance – 138
Disruptive robocalls, spoofed calls and scam calls were ringing into employee lines, undermining service delivery for legitimate clients and exposing employees to potential threats.