A man by the name of HD Moore, a computer security specialist, tried an experiment on his own a few weeks back. The aim of the experiment was to probe as many computers/devices as possible, and see what the results were. Moore pinged all 3.7 billion IP V4 address’ available through a clever program that he wrote, and the results returned 310 million devices with well known security flaws. Things like default passwords, admin/admin for username/password or even no passwords at all!
Moore’s experiments wasn’t exactly legal, but if you read his methodology, it’s not as though any harm was intended or came from the experiment, he was searching for an overarching view of the security status of the internet, and it’s bad. Make sure to change your passwords regularly and keep your software up to date!
read more at technologyreview.com