I've read a story similar to yours on HN where someone explained that they made passive income off a data recovery tool. They also said that it wouldn't work on SSDs, so it was becoming less relevant with time.
Do the forensic techniques you implemented work on SSDs? Also, were you the person who posted that earlier?
Yes, that's me. Hacker News is the only place I feel I can talk about this kind of thing so it's cathartic. And no, it doesnt work on SSD's. They're black boxes. However I think data recovery on them is possible with hardware. It's the controller that returns 0's after it has been sent the command to TRIM some free space.
Do the forensic techniques you implemented work on SSDs? Also, were you the person who posted that earlier?