Update October 8, 2014 @ 20:33: An update with Adobe's response has been published over here.
The Digital Reader reports Adobe's Digital Editions 4 Epub app has been caught sending an awful lot of data to Adobe's servers. A security researcher confirmed that Adobe's app gathers data on which eBooks have been opened, which pages were read, and in what order. All this data is being sent to Adobe's server in clear text. Additionally, Adobe also scans your computer, gathers metadata of all eBooks it can find on your hard disk, and uploads that 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.
I am not joking; Adobe is not only logging what users are doing, they’re also sending those logs to their servers in such a way that anyone running one of the servers in between can listen in and know everything,
But wait, there’s more.
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.