When someone starts talking about cloaking devices and technology, I immediately reference the Romulan tech of Star Trek. However, when it comes to earthquakes, scientists are working on a way to cloak entire structures from tremors.
It’s true that surfing the web through public connections isn’t that safe. I still remember a crazy computer virus I got in Thailand that migrated from my compact flash card onto my home system. Cloak aims to improve network security by sending traffic through a VPN that encrypts all of your Internet traffic.