You'd think a German chemicals company big enough to worry about people hacking their phones and eavesdropping on R&D meetings would have the budget to just invest in a Faraday pouch. But in the case of Evonik, they're cheap, so they use biscuit tins.
According to the AFP, "industrial espionage" is a trend on the rise, and companies like Evonik are increasingly paranoid about it.
Biscuit tins have a so-called Farraday cage effect, [spokeswoman Alexandra Boy]said, blocking out electromagnetic radiation and therefore preventing people from hacking into mobile phones, not only for calls but also to get hold of emails.
Image via Flickr/Franie Frou Frou