[atoav]

If somebody else creates an account tied to your email adress they implicitly agree to have anybody who controls that account use these features.

If they don't like that they should use their own email address instead. If it was unintentional, it is their fault for not paying attention.

[wolverine876]

That may be how you feel about it, but the court may see it differently. If someone's paycheck is mistakenly mailed to you, even in cash, you can't deposit it.

[atoav]

I don't live in the US, but if I receive an emvelope with my name and address on it I am allowed to read it.

And if in that envelope it says I opened a bank account, I am allowed to close it or at least ask the bank wtf they are doing.

Now I'd always argue for not acting destructively and be nice to people, e.g. assume they made a mistake and help them fix it. But if you are confusing my inbox with your own, you shouldn't be surprised if I read your mail. Mail that might expose other people's secrets.

[averageRoyalty]

Sounds like an American thing, as most of the world don't have "paychecks".

The internet is global, and American laws aren't super relevant.

[pigeons]

I agree that we should be mindful that there are many global legal traditions, but "unjust enrichment" is an English Common Law concept and much broader than American laws.

[averageRoyalty]

Fair point, but the "paycheck" example was an analogy around an account being opened in your name, and a poor one.