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On my Huawei PLK-AL10, when I type *#06# in the dialer, a window named MEID_IMEI would pop up and display some random strings. Note that someone can get this information through the "Emergency call" interface, without having to know the lock screen password.

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I'm told that only mobile phones manufactured by Huawei show the MEID, PESN, IMEI1 and IMEI2 information if someone tries to dial *#06# using the emergency call dialer. Could this be a security risk?

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There is no real security risk.

Those numbers displayed each represent a serial number of a certain piece of hardware. Cellular networks mostly use IMEI to track a stolen phone and put it on a blacklist. There for no attack is exposed unless someone would get your IMEI and add it to a blacklist (very unlikely).

What you should worry about is your phone that is being accessed by someone else so take good care of that!

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