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Vivo V5 Plus

 

This is how SIM cards work

We don’t think about SIM cards as much as we used to — like back when they were required to start up a phone — but these tiny chips are still essential in keeping a modern smartphone wirelessly connected at all times. This brings us to a question we should be asking: How exactly does a SIM card work?

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Parisa Tabriz

Your foolproof password isn’t good enough

So, you have the most outrageous passwords you can think of — like [email protected]$oNFir3 or kings4lyf88 — for all your online accounts and keep them all to yourself. Great job, but you can definitely do better.

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