Katie started at Which? in the Home, Health and Environment team, and has since moved to the Technology team to take the lead role in Tech investigations.
Hackers have leaked explicit pictures they claim to have taken from the iCloud accounts of a string of female celebrities, including Jennifer Lawrence, Rihanna and Cat Deeley. Find out how to keep your iCloud account safe
In-store tracking could mean big business for retailers - and change your shopping habits without you knowing. Read more about iBeacons and location-based tracking
Like the sound of talking face-to-face from miles away, all for free? We show you how to install and use Skype. Follow our step by step guide to using Skype
You can pay about £1,000 for a digital SLR or compact system camera with a touchscreen, but some of the top performers in our lab tests are around a fifth of the price. Read owners' views of DSLR cameras
In a mobile age, you might feel you don't need a cordless phone at all - and the 15% of mobile-only homes would probably agree. But if you want and need one, what are the features you can live without to save money? Read more about about cordless phones