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Verifying…
Checking this Halo verification.
Checking this Halo verification.
Voice-clone scam protection, on the call
Three seconds of audio is enough to clone a voice. Halo answers with something a clone can never fake: a safety word texted to the number you already trust. If the person on the line can't read it back, it isn't them.
Free to try · $0.99/mo for unlimited checks · The person you check installs nothing
Sample check. The words match, or it is not them.
of audio is enough for AI to clone a voice. A voicemail greeting covers it.
reported lost to imposter scams in a single year, per the FTC. The most-reported fraud there is.
The FBI has warned families about cloned voices of loved ones calling in distress.
“Hi grandma, it's me. I'm in trouble.”
The scam opens with panic and closes before anyone can think. A family safe word helps until someone forgets it or repeats it near a recording. Calling back reaches whatever number the scammer spoofed. You need a check that reaches the real person while the call is still live.
Halo turns “is this really them?” into a ten second check you run yourself.
Something feels off. iOS tells Halo a call is in progress; Halo never hears a word of it and never learns who is on it. No microphone, no contacts.
One glance at Face ID signs the check and opens Messages. You send it to the number already in your phone, never to the caller.
The real person taps the link and reads two words aloud that match your screen. A scammer never got the text, so they have nothing to say.
◠ MAPLE TRUMPETVerify your number once. Your signing key never leaves your iPhone. The people you check need nothing.
Any call that asks for money or codes gets one reply: “Hang on, let me Halo you.”
Face ID, one text, matching safety words spoken aloud. A cloned voice fails the moment it's asked.
Then you have already seen it work: someone checked it was really you on their call, and the safety word matched on both screens. You needed no app for that, and never will. The link was signed with their Face ID, so you also know the check came from them.
Now think of the call that would fool you: a voice that sounds like someone you love, asking for money. Get Halo and have the same check ready.
A fake link cannot show the right safety word. The word is computed from a check only your Face ID can create, and the text goes to the number you chose, never to the caller. If the person on the line cannot say the word, it is not them. A real Halo link never asks for money, codes, or passwords; anything that does is fake by definition.
Only you, the person doing the checking, on an iPhone with iOS 18. The person you check needs no app: the link works on any phone with a browser, however old.
Yes, in either seat. If they have Halo, the check is one glance and one text. If you have it, they install nothing: they tap the link in your text and read two large words aloud. Either way, the scammer never gets the text.
Only that a call is happening. Never who is on it, never for how long. Texts leave from your own Messages app, so the other person's number never reaches us. Our whole database per user: a name, a public key, a hashed number.
The app is free, and passing a check stays free for everyone, forever. Running unlimited checks is Halo Pro: $0.99 a month or $9.99 a year.
Find out who is really on the line, before you send a cent.
Get Halo on the App StoreiPhone · iOS 18+ · Free, with Halo Pro at $0.99/month
Got a Halo text? Open the link inside it and read the safety word aloud. It should match their screen.