Hi, so often these days, when signing up for a service your mobile phone is requested. And half the time it's not even needed, but you're required to enter it.
For most folks, we keep the same mobile number, so it becomes yet another kind of digital identity. I've recently come across 'burner' phone type apps, which give you another number that you use instead of your 'real' one. Though they seem dubious. Anyone with any knowledge/experience of these?