Adobe Digital Editions 4, the newest version of Adobe’s Epub app, seemed to be sending an awful lot of data to Adobe’s servers.

Adobe is gathering data on the ebooks that have been opened, which pages were read, and in what order. All of this data, including the title, publisher, and other metadata for the book is being sent to Adobe’s server in clear text.

Adobe isn’t just tracking what users are doing in DE4; this app was also scanning my computer, gathering the metadata from all of the ebooks sitting on my hard disk, and uploading that data to Adobe’s servers.

And just to be clear, this includes not just ebooks I opened in DE4, but also ebooks I store in calibre and every Epub ebook I happen to have sitting on my hard disk.

http://the-digital-reader.com/2014/10/06/adobe-spying-users-collecting-data-ebook-libraries/