A security flaw in Amazon s Kindle e-reader made it vulnerable to malicious eBooks, opening the door to turning the devices into bots, compromising personal information and more. Check Point disclosed the bug to Amazon in February, and it was fixed in April; Amazon released patched firmware to be automatically installed on every Kindle connected to the internet. It’s unclear if the bug was exploited prior to the patch, but crisis appears to have been averted: Any serious attack could have affected tens of millions of Kindle users across the globe.
Source: https://threatpost.com/amazon-kindle-malicious-ebooks/168454/