If you're not already locking your iPad with a password, this is an important step to take, and it's one well worth doing. There's a lot of data on an iPad - and even more, typically, on an iPhone - and you wouldn't want this in a stranger's hands.

Remember, some of the apps you run on an iPad may contain important data. Your Contacts list or personal emails, for example. Plus apps such as eBay and Amazon let you do shopping that links directly to your card. 

With this in mind, it's worth locking your iPad with a password to make sure it's only you that can access these apps. Newer iPads and iPhones also let you use fingerprint recognition to open the devices.

Video: Set a password on your iPad