Caller ID Spoofing

This cluster focuses on the ease of spoofing caller ID in phone calls, its facilitation of scams and spam, and discussions on why it's still possible despite efforts like STIR/SHAKEN.

📉 Falling 0.3x Security
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Comments
19
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#779
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Keywords

US ANI ICICI SMS GP VOIP IVRS www.fcc OP NA caller id spoof phone numbers calls phone number number spoofing bank

Sample Comments

nmjohn • May 8, 2016 • View on HN

Basically, because there is no verification/validation surrounding caller id - https://en.wikipedia.org/wiki/Caller_ID_spoofing

joshu • Jan 28, 2015 • View on HN

Why is it still possible to spoof caller id?

idunno246 • Mar 15, 2013 • View on HN

Except caller id / phone number is easily spoofed

gruez • Oct 29, 2015 • View on HN

but you can't rely on the phone number reported by caller id - they're very spoofable.

jowea • Dec 7, 2024 • View on HN

I'm guessing but the problem is source phone number spoofing. If Caller ID worked correctly 100% of the time and 100% of the time you get a fraud/spam/etc call you could complain and the authorities knew who owned the phone number it would be harder to operate the fraud. And with personal cryptographic attestation you could reliably link a phone number to a person.

matsemann • Sep 14, 2023 • View on HN

They could trivially spoof the number they're calling from to match.

egberts1 • Aug 23, 2021 • View on HN

ummmm, caller ID are easily spoofed, no?

kmoser • May 3, 2024 • View on HN

This won't work since Caller ID is too easy to spoof.

phkahler • Aug 16, 2017 • View on HN

It should not be possible to spoof caller ID. This hole is what allows all of this. Nobody would do this if you could reliably report them or call them back.

kevin_b_er • Oct 1, 2018 • View on HN

This is no longer a valid tactic. The phone number can, has, and will be spoofed.