An international mobile subscriber identity (IMSI) is a unique number associated with GSM (Global System for Mobile Communications) and UMTS (Universal Mobile Telecommunications System) network mobile ...

Pronounced "im-zee catcher," it logs the phone's International Mobile Subscriber Identity number (IMSI) and functions like a man-in-the-middle attack, relaying voice, text and data traffic between ...

Spoofing” is when someone disguises an email address, sender name, phone number or website URL, or uniform resource locator.

When 3G was developed, long ago now, spoofing cell towers was expensive and difficult enough that the phone’s International Mobile Subscriber Identity (IMSI) was transmitted unencrypted.

From their initial investigations, Ramos found out these cybercriminals were using smuggled portable gadgets called IMSI, or International Mobile Subscriber Identity. The IMSI is a unique number ...