The Cost of Expiration
Who needs to know when a domain has expired ? It Depends, and it Deepens.
Ideas
Ideas, Concepts and Other Badly-Thunk things
File Folding.
File Folding is a technique that moves a file into hex, and that hex is broken into folder file names in a fashion that can be reconstructed.
Data-bouncing
Data-Bouncing - The art of indirect exfiltration. Using & Abusing Trusted Domains as a 2nd Order Transport.
DNS Security TXT
DNS Security TXT record A method to hold security contact signposting from an authoritative position - from Casey Ellis & myself https://dnssecuritytxt.org/?tc