SIM Cards
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  • 🔥Welcome!
  • 1️⃣Technology
    • ✅SIM Cards Technology
    • ✅SIM Cards Internals
    • Types of SIM Cards
    • Algorithms
  • 2️⃣SIM 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
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  1. GSM Identifiers

PIN2 - Personal Identification Number 2

  1. PIN2 (Personal Identification Number 2): PIN2 is a four to eight-digit numeric code that is set by the SIM card user or the mobile network operator.

  2. It is used as a security measure to protect specific functions on the SIM card, such as changing call forwarding settings, accessing the SIM card's additional features, or making changes to the fixed dialing numbers (FDN) list.

  3. PIN2 is different from the regular PIN (PIN1), which is used to unlock the SIM card and gain access to the mobile network. PIN2 is typically required when accessing advanced SIM card features that have additional security requirements.

PreviousAuthentication key (Ki)NextPUK2 - Personal Unblocking Key 2

Last updated 7 months ago

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