SIM security

Smartphone customers normally shield the information saved on their gadgets by establishing a biometric lock, PIN or passcode. However what concerning the knowledge saved in SIM reminiscence? What if somebody takes out the SIM card and begins utilizing it on one other phone? Bear in mind, it comprises much more info different than simply phone numbers. This contains billing info and transaction OTPs too come by way of SIM card.

Merely put, a smartphone’s lock display screen doesn’t lock the SIM card inside it and even establishing app lock or encrypting your entire smartphone or utilizing the boot-time password in your smartphone doesn’t shield the SIM card or its knowledge.

Effectively, then how you can shield the SIM card and the information saved on it. The reply is SIM PIN, which can be the one manner that provides an extra layer of safety to the SIM. As soon as the SIM PIN lock is enabled, every time you may restart the smartphone or swap the SIM to another smartphone, it would ask you to enter your SIM PIN and with out the authentication, SIM card won’t be accessible in any respect.

Do note that in case you neglect your SIM PIN and you will want to name buyer care. As it would ask for PUK (PIN Unlock Key) code to unlock the SIM.


Go to Settings and Tap on Security


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Now, Tap on Other security settings or More security settings


Tap on Set up SIM card lock


Enter default PIN of your SIM card

The default SIM PIN differs from operator to operator. For instance, Airtel customers can enter 1234 and the default SIM PIN for Vodafone customers is 0000.


To change the default SIM PIN, Tap on Change SIM card PIN.


Enter the current PIN to confirm after which enter the new PIN of your choice and ensure it again to save the new PIN.