Scams
SIM swap
In Turkish: SIM kart değiştirme (SIM swap) saldırısı
An attacker gets your phone number moved to a SIM they hold, so your calls and SMS codes reach them instead of you.
Many accounts send a code by SMS to prove it is you. If an attacker can make your operator move your number, they receive those codes and can reset passwords on email, banking and social accounts.
A sudden loss of signal for hours, together with login alerts you did not cause, is the classic sign. Acting in the first hour matters most.
What to do
- If your phone shows no service for no reason, call your operator from another phone and ask about a SIM change.
- Then secure your email and banking accounts first, since they can reset others.
- Prefer an authenticator app or a security key over SMS codes, and ask your operator about extra protection on your line.