Want to know more about VPNs? In this week's show we explain what the term means, why you need one, how to sign up to a VPN, and why you should avoid free VPNs.

Here's what we talk about this week:

• What is a VPN?
• VPN protocols explained
• Some of the best VPN routers
• The reasons you should use a VPN
• Best VPN services available

This week's show is brought to you by Christian Cawley and Gavin Philips. You can contact them on Twitter as @thegadgetmonkey and @GavinSpavin with your suggestions for future topics.

Look out for our other shows - subscribe to The Really Useful Podcast on iTunes and YouTube (be sure to hit the bell icon to be notified of new episodes) for more tips.