Click My PIN and Unblocking Key (PUK)* (located on the right in the About My Device section). Linote The default PIN and PUK key display once link is clicked. View solution in original post

PUK stands for “Personal Unblocking Key”, it is a feature in all the smartphones and mobile phones offered by different telecom networks such as Airtel, Idea, Vodafone, Jio, and BSNL as well. Mostly PUK is required when someone is doing some unauthorized uses of your sim card. The PUK is bound to your account, that’s true, but your account is completely anonymous and the PUK is bound to nothing else. No one but you has a copy of that key (not even CyberGhost) and therefore nobody can use it to unveil your identity or takeover your account. If your phone has locked you out, you’ll need a Personal Unlocking Key (PUK) to get back in to it. The reason for being locked out is usually that you've entered your PIN incorrectly 3 times. How to get your PUK code. Simply visit Your Account, select Plan and device then select the Summary tab your PUK code will one of the option available. The PIN Unblock Code (PUK) is used for unblocking the User PIN. If both the PIN and the PUK are blocked, the YubiKey must be reset, which deletes any loaded certificates and returns the YubiKey to a factory default state. The YubiKey Minidriver will block the PUK if it is set to the factory default value.

Jun 27, 2019

PUK (Personal Unblocking Key) is a security measure applied on the SIM cards for entering your password wrong 3 times in a row. Yes in case you forgot your password and you have entered the wrong password for 3 times you might have a blocked SIM card at the end and the only thing that will help you in retrieving your SIM card is the PUK code from your network operator.

What is the PUK and can it compromise my anonymity

Mobile phone is SIM locked and asking for a PUK code or PIN? Does it ask for a PUK code? If it asking for a PUK key then you have probably messed with the security settings on your cell phone and the SIM card is now blocked. The PUK (or PUC) number is the PIN code needed to unfreeze the sim card. What is the meaning of PUK ? The acronym PUK is derived from the term Pin Unlocking Key.