Security researcher Mike Olsen discovered that the CCTV surveillance devices sold on Amazon came with pre-installed malware. Olsen discovered this nasty secret after he bought a set of outdoor CCTV surveillance cameras from Amazon for one of his friends. The malware distributed by the surveillance cameras can have the ability to hijack video feeds or make the customer’s cameras part of a DDoS Botnet, something that happened last year. Be careful while buying any off-brand electronics from Amazon, as they could end up infecting you.
Source: https://thehackernews.com/2016/04/home-security-system.html