> So basically, 1) the attacker embeds a link to the encrypted message, 2) the email client fetches and decrypts it, and then 3) sends plaintext back to the attacker.
What? The attacker embeds secure content inside a link, not a link to the content. It could come from files stored in a public place or emails.
If you click the unfortunately named "List of ALL hackerspaces"[1], scroll down and click on "further results"[2] then adjust to show all 500 results[3] and finally search the page you will not find Null Space Labs (but some references to Queensland). That doesn't mean NSL isn't on the site... just that the site fails.
What? The attacker embeds secure content inside a link, not a link to the content. It could come from files stored in a public place or emails.