Table of contents 🔥 Welcome! 1️⃣ Technology ✅ SIM Cards Technology ✅ SIM Cards Internals Types of SIM Cards Algorithms 2️⃣ SIM Cards Versions ✅ Companies GSM Identifiers Description 🟢 ICCID - Integrated Circuit Card Identifier 🟢 SIM - Subscriber Identity Module IMSI - Authentication key (Ki) PIN2 - Personal Identification Number 2 PUK2 - Personal Unblocking Key 2 Software SIMalliance CAT Loader V2.0 SIM card Security SIM Cards Attacks Page 1