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It’s generally expected that you have a cell phone, accessible at all times, which can receive SMS text message MFA codes.

This drives me crazy. I don't want my phone number to be a single point dependancy for such services.




I also don’t like giving my permanent, cross-app cross-company tracking identifier to those with whom I am doing business, allowing them to buy tons of additional data about me from data brokers (and selling my transaction data back).

Phone numbers are commonly used for this. I change mine monthly.




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