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betaby 5 days ago

5G standalone is not transmitting IMEI in plain text ever to my knowledge.

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boston_clone 5 days ago | parent [-]

isn't this then ripe for a downgrade attack?

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NoiseBert69 5 days ago | parent [-]

To LTE? Doesn't work there either.

There are IMSI catchers - but they all require GSM. At least on Google Pixels you can turn off 2G with a switch. The phone even shows a message about its insecurity.

In Germany I'm running 100% on LTE/5GNR-only for many months now without having a single coverage gap.

	▲	boston_clone 4 days ago \| parent [-]
		thank you for the explainer; I do need to research for a more complete understanding of this space. looks like iPhones will need to enable Lockdown Mode to disable 2G, at least for iOS 17+ per https://ssd.eff.org/module/attending-protest