Tech 24

The vast undersea cable network

How does all your data travel around the world and how vulnerable is it? In this edition, we tell you more about the massive system of fibre optic cables that lies deep underneath the oceans, carrying your emails, photos and videos. Plus, our in-house expert Dhanajay Khadilkar is taking Test 24 outside this week and putting himself at risk for you by clipping on a pair of vintage-looking rollerblades.