For some reason I can't find a search form for this forum, as I'm sure this subject has been discussed before.
(I've read the 1st 20 pages of the Discussions forum and decided to post instead of laboriously going through the rest)
I've got my first dishonest buyer, but with malice.
They posted a comment on my youtube video yesterday that everything I was doing was a scam.
Then today they bought my book, downloaded it and 7 minutes later they opened a paypal dispute "merchandise is not as described" with the reason that everything is a scam (no reason fitting the not as described).
I'm not concerned about refunding, only the sharing of what they got their hands on.
Already they've tried to post my book on a major website in the niche but were denied, however I'm sure they'll keep going and cause damage with extended sharing.
I need to be able to revoke the ability to use the ebook by user, as my niche has a significant percentage of delinquent people (amongst a lot of good people) and this one act is enough to give me a lot of trouble stopping the sharing.
I'm well aware DRM is not easy, however if I don't find a way I can revoke a user's ebook copy, all my work will go down the drain.
Yes, I use stamping but it hasn't deterred the current abuser.
Any help by anyone as to what they've done to counteract this would be appreciated.