It is advisable to keep Spam in the fridge once the can has been opened. Alarmingly, though, it seems it could be lurking in your freezer without your knowledge. Research from the USA suggests that smart household appliances, including fridges, could be responsible for sending up to 325,000 spam emails a week. in the two weeks to January 6 no fewer than 100,000 home gadgets were pushing out spam email in rapid bursts. Apparently, the new kitchen and living room denizens of the Internet of Things are not protected in the same way that (we hope) our computers are shielded. Worrying.