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Deepfake Defense
Ban Voice-Only Approvals
No payments, access changes, or identity changes are executed from calls or voicemails. Put the request into a ticket or approval flow first.
Directory Callback Only
If “the CFO” calls, hang up and call back using the corporate directory contact, not the inbound number.
One-Time Challenge In a Second Channel
Send a short code in Teams and have the caller read it back. Avoid static passphrases that can leak.
Plain-Language Script
“Per policy, I am moving this into our approval workflow and calling you back on the directory number.”
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