AI voice cloning scams
Fraudsters are now using AI to clone the voices of family members, colleagues and executives. In 2025, as few as 3 seconds of audio is enough to create a voice clone with 85% accuracy, scraped from a social media video or voicemail.
How it works
AI voice cloning tools can generate a convincing replica of a person's voice from only a few seconds of audio. Sources scammers use include: social media videos, TikTok posts, YouTube content, podcast appearances, and voicemail recordings. The tools are cheap, widely available, and require no technical skill.
Once cloned, the voice can be used in a live call, with a fraudster typing what they want to say and the AI speaking it in real time — or in a pre-recorded voicemail. The cloned voice is designed to trigger emotional responses that make recipients less likely to question what they are hearing.
How these scams are used
The grandparent scam
The most common variant targeting older people. The victim receives a call from someone who sounds exactly like their grandchild saying they have been arrested, had an accident, or are in hospital, urgently needing money sent before the family finds out. The emotional pressure makes critical thinking very difficult. AI voice cloning has made this scam significantly more convincing.
CEO fraud
A finance employee receives a call or voicemail from someone who sounds exactly like their CEO or CFO, instructing an urgent wire transfer. Combined with a spoofed email, this has led to significant losses. A UK engineering firm lost approximately £25 million in a single deepfake call in 2024.
Colleague impersonation
A cloned voice of a trusted colleague asks for urgent help, including access credentials, a bank transfer, or sensitive information. The request bypasses suspicion because the voice is familiar.
Family emergency with follow-up caller
A cloned voice of a family member sets up the emergency. Then a second caller, claiming to be a solicitor, police officer or doctor — follows up to coordinate the payment or information extraction.
Recognising emotional manipulation
These scams are designed to create panic and bypass your rational thinking. Common tactics: urgency (“I need money today”), secrecy (“don't tell Mum yet”), and fear (“I'll lose my job” or “I'll be prosecuted”). These are deliberate psychological techniques. If a call feels urgent and emotionally intense: pause before acting.
How to protect yourself and your family
- Establish a family code word: Agree on a secret word with close family members that anyone can ask for in a suspicious call. A voice-cloned scammer will not know it. A genuine family member will not mind being asked..
- Call back on a known number: Hang up and call your family member or colleague back on their usual, saved number, not any number given in the call. Even a 30-second delay lets the panic subside.
- Reduce your public audio footprint: Be aware of how much voice audio is publicly accessible in your social media videos, podcast appearances, or company websites. Longer samples produce better clones.
- Never send money under pressure: Any request for urgent financial help by phone should be verified through a second channel before acting. Genuine emergencies can wait two minutes while you call a relative.
- For businesses: verify payment requests: Implement multi-person authorisation for financial transfers. A voicemail or phone call alone, however convincing, should never be sufficient to authorise a significant payment.
Reporting
Report AI voice cloning scam attempts to Action Fraud at reportfraud.police.uk or 0300 123 2040. If money has been transferred, contact your bank immediately and dial 159.