Protect Your Business From a Voice Clone: One Word Stops It

Key takeaways

• Assume your voice can already be cloned from a short public clip. In May 2025 the FBI's IC3 warned that malicious actors were impersonating senior US officials with text and voice messages, often AI-generated, so the technique clearly works and scales down to any business.
• Set two codewords, one for family and one for your business circle. It's a secret word the real you knows instantly and a voice clone can't guess. The FBI recommends agreeing on a secret word or phrase with your family to verify each other's identities.
• Keep the codeword offline. Say it out loud, never email, text, or store it, and pick something with no public paper trail like an odd two-word pairing. Change it only if it gets typed, overheard, or probed by a fake call.
• Use the callback rule: if a call asks for money or access, hang up and call back on a number you already had, never the number that just called you. Caller ID can be spoofed. For text messages the callback rule is the whole defense, since you can't challenge a text with a spoken word.
• Give your bookkeeper, VA, or assistant a standing instruction to verify with the codeword and a callback before moving money, and promise they'll never be in trouble for slowing down. Fraud runs on urgency.
• If someone fails the word, end the call without explaining, confirm with the real person on your known number, warn everyone who holds that word, pick a new one, and report it at ic3.gov. If money moved, call your bank first.
• Anything based on how a caller sounds or what caller ID shows is beatable. Only a secret you hold or a channel you control actually stops a clone.
• The whole setup is free and takes about ten minutes, and you can have Claude draft the exact family and team messages for you, then run a practice drill so the rule holds under pressure.