"Alexa, tell me what's been the hottest gadget of the last few years."
The Amazon Echo range of smart speakers have been a smash hit. They're helping to usher in the next generation of consumer tech, where we can chat to our devices instead of being glued to their screens.
One of the things that makes them so popular is how easy to use they are. They're good to go straight out of the box. Yet even so, there's still a few tweaks you can make if you want to improve an Echo's security and your privacy.
1. Set up a PIN to prevent voice purchases
Alexa makes it easy to shop on Amazon. Maybe too easy. If you'd like to control who can purchase things on your Echo, or put an obstacle in the way of your impulse buys, you can. Sign in at alexa.amazon.co.uk and set up a four digit PIN.
To enter your PIN on an Amazon Echo you have to speak it out loud, so it's not exactly an uncrackable security system. Think of it more as a way to prevent accidental purchases. Alternatively, you can disable voice purchasing entirely. You'll still be able to add things to your cart, but you need to complete the purchase on your phone or laptop.
2. Change the wake word
The Echo leaps into action the moment it hears its name. It's mostly pretty great, but isn't ideal if you've got more than one of the devices in your house, and could become outright annoying if you happen to live with someone called Alexa.
Fortunately, you can change the wake word if you need to, via the app. You don't get to set it to literally any word you want, you have to pick it from an approved list. Your options include things like "Echo", "Amazon" or "Computer".
3. Delete your voice recordings from time to time
If you're concerned about the privacy implications of smart speakers, you can allay some of your fears by clearing out your Voice History from time to time. You can do this on either the app or the website, where you'll see transcripts of all the voice commands you've given to your Alexa device. By default, they'll remain on Amazon's servers forever, so it's a good idea to find and remove any that you don't want to keep (or just get rid of them all).
4. Protect your privacy
Here's a bonus tip for the tinfoil hat brigade. Your Echo only starts recording when you say the wake word, but it is listening all the time. If you aren't comfortable with that you can turn off voice activation entirely by pressing the microphone button. It'll stay off until you press it again (although it can be hard to tell if it's off). If you've got an Echo with a built-in camera, you might want to use the cover supplied to ensure there's no risk of surreptitious filming, too.
And to complete your privacy upgrade, head over to the Echo settings and deactivate the "Use Voice Recordings to Improve Amazon Services and to Develop New Features" option. This prevents any of your recordings being accessible to Amazon workers for research purposes.
5. Don't overuse Alexa Skills
Alexa Skills are little apps you can install to upgrade the functionality of your Amazon Echo. You can use them to control your thermostat, give you a workout, book an Uber, and much more. But whenever third party apps are involved there's a slight security risk.
We'd recommend giving the privacy policies of your chosen Skills a quick once over to make sure they aren't going to snaffle your data; try to stick to popular, well-rated Skills; and uninstall any that you no longer use.
6. Beef up your router's security
Finally, whenever you connect up a new device that's accessible to the outside world, it's a good idea to double check that your router's security is as sound as it could be. Take a look at our guide on how to secure your router for the full lowdown on keeping your home network safe.