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me: I lost my phone. I need a new SIM card.
shop assistant: phone number please.
me: +436...
he: here is your new SIM. we will charge 10 € on your next invoice.

don't trust phone numbers as identifiers.

@hexmasteen OMG... No form of legitimation was requested?!

@jamesvdarkwood Yeah. One mistake by one employee could lead to serious problems. Thinking about it: if he would have made an error in typing one of the digits..
Trusting a big company to manage your identifier is good enough most of the time but secure solutions should offer an alternative. Here is the discussion about this: community.signalusers.org/t/a-

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chaos.social

chaos.social - because anarchy is much more fun with friends.
chaos.social is a small Mastodon instance for and by the Chaos community surrounding the Chaos Computer Club. We provide a small community space - Be excellent to each other, and have a look at what that means around here.
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The primary instance languages are German and English.