Unfortunately with the growth of monetorising almost anything these days on the Internet the rogue pirates will come out to play and cause consternation to legitimate sellers – so pirating of e/i-print books online will, (and has) occurred. Distributors (such as Amazon) are just that and cannot be held responsible.
Reselling or giveaway to attract more download with Malware happens and of course not knowing where to report leaves sources who have done this will look to the originator of the item to try and get recompense which can be resolved by evidence base that you did not supply the site concerned but still a hassle we can all do without.
The key thing here is that third party(ies) are trying to make money on the back of your hard work and profit without any regard or consequences for others.
There is an article on the subject at The Helpful Writer + Wiki How + Digital Book World. Even the major Publishers have an issue and setup their own sites to report this so that they go through the motions of having the sites involved reported to sources such as Google and taken down.
There is another good mentoring and aid to preventive measures in Google Alerts where you can then setup to inform you if any incidents occur which includes several options including your websites, blogs, etc and ‘Books’ – accumulatively with everything else all serve as a deterrent and precautionary measures.
Digital Rights Management : An alternative preventative measure to protect against illegal copying and piracy, but the standard approach of applying DRM to eBook files comes with its own set of difficulties, especially if you are planning to sell your own eBooks. Visit here to read the pros and cons to consider whether this option is for you?
Distributors such as Amazon, Apple, and Adobe apply DRM. In the case of above they also use Adobe Digital Editions Protection Technology (ADEPT), plus outlets such as Barnes & Noble, Sony, Kobo, and Overdrive. The use of this technology software can be available for the self-publishers to use on their websites as well.
The US Copyright Office, and the position of Register of Copyrights were created by Congress in 1897 as a separate department of the Library of Congress. Although US based US authors can also registered and enjoy the same worldwide benefits of the service. Please see Alli video on the subject. Checking content copyright ownership/permission can be checked at PLSClear.
Ultimately, as in a recent case, an umbrella body sought to successfully get a High Court injunction to force the ISP’s to take down named sites but alas whilst this was commendable there is the risk that they simply close down, keep under the radar for a while and then start up other name(s) on sites(s) to repeat. However, the above exercises can make it troublesome and deterrent for the perpetrator(s) and strive to make them go somewhere else instead.
It is hoped the above links with help you to review options for this the future.