Hot Hardware published a review on the Security Hazards Of The IoT: Your Printer Is A Vulnerability Minefield A quote from the article:

Take a look at your printer. Give it a good stare. Do you trust it? Probably not, considering it jammed the last time you had to print an important paper right up against a deadline.

However, what if we told you that your printer just has to sit there on your network to be a very serious security problem?

 Security Hazards Of The IoT: Your Printer Is A Vulnerability Minefield @ HotHardware