All signals
Safety and scamsBeginner

SIM swap attacks

A scammer convinces your mobile carrier to move your phone number to a SIM card they hold.

What it means
From then on, SMS login and reset codes go to the scammer, who can use them to get into accounts that rely on your number.
What to watch
Your phone suddenly losing service, and accounts that use SMS codes; an authenticator app, a security key and a carrier PIN or port lock make it harder.
How Compass-Alpha uses it
Background only; not used in any figure on Compass-Alpha.

Free guides and tools

Crypto Fear & Greed IndexBitcoin DCA calculatorCrypto taxCrypto basics

More in Safety and scams