GCD AI RADAR
incidents/AIR-2023-0028

Lloyds Bank Voice ID Bypassed Using AI-Generated Audio

AI-enabled attack3 Confirmed exploitationDeepfake fraud

A journalist successfully bypassed a bank's voice recognition authentication system using synthetic audio generated by AI. The incident demonstrated vulnerabilities in voice biometric security controls.

Details

type
AI-enabled attack
Attackers used AI as a meaningful part of a cyberattack against someone else.
categories
  • Deepfake fraud
    Synthetic voice, video or images used to impersonate people for fraud, extortion or access.
owasp llm top 10
no entry for these categories
mitre atlas
Both rows are derived from the type and categories (OWASP 2025 edition, ATLAS release 2026.09), not classified per record. How
severity
3 · Confirmed exploitation
Used against real targets; limited or unclear impact.
targets
Enterprise deployment
products
Lloyds Bank Voice ID, ElevenLabs
incident date
22 Feb 2023
first reported
22 Feb 2023
origin
AI Incident Database
Derived from the AI Incident Database (CC BY-SA 4.0).
classifier confidence
0.95 · published at or above 0.80; see the methodology
tags
deepfake · voice-biometrics · authentication-bypass
record
created 2026-10-18 06:33Z · updated 2026-10-18 06:59Z · json

Sources · 1

  1. 2023-02-22
    UK Bank's Voice ID Successfully Bypassed Using AI-Produced Audio
    AI Incident Database · incidentdatabase.ai/cite/485

Titles and links belong to their publishers. The summary above is written by GCD AI RADAR in its own words; data is CC BY-SA 4.0.

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