[mistercow]

I wonder how viable it would be to find a public key your target owns and use it to encrypt the data you send back. Then you could prove to them that you exfiltrated real data without exposing it to anyone outside the company.

Alternatively, you could hash it and say “Look, it’s a sha of your database password hyphen “yougotpwnd””

[necovek]

HTTPS certificates should already have that public key for you, so it should be trivial.