How do you share sensitive data securely without accounts?

I’ve been thinking about how people currently share sensitive data like passwords, API keys, or private files.

Most workflows still involve tools that require accounts or store data in a way you have to trust.

What approaches do you use to share sensitive information securely?

Do you rely on tools like Pastebin, cloud drives, or something else?

I’m exploring ways to simplify this while keeping strong privacy controls like expiring links or one-time access.

Curious to hear how others handle this.