> *How would you prevent someone from spamming a user just by knowing their user... | Hacker News

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Tangurena2 on Sept 21, 2022 | parent | context | favorite | on: Tell HN: Somebody implemented something I wrote a ...

> How would you prevent someone from spamming a user just by knowing their username?

Wasn't something like this how Uber got hacked recently? Spamming the target until they clicked "yes" on the 2FA prompt?

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