Voice-activated intelligent virtual assistants such as Amazon Echo and Google Home are starting to play an important role as the hub of our connected homes.

Buttons are obsolete. Simply by conversing with my Alexa I can control my central heating and the lighting around my house and garden; I can buy products with my voice, check my personal calendar, set alarms or reminders, update my things to do list, read my favourite book or play any song, album or playlist on Spotify. With my voice.

Hear no Evil

The convenience this offers is staggering and, in a little over three months since I plugged it in and powered it on, my Amazon Echo has already changed many behaviours in our household. For the better? I think so. However...

With convenience comes compromise, especially when it comes to security. We should never be blinded by the utility of any new piece of technology.

I made one mistake in extolling the virtues of our Amazon Echo above. You see, all of these amazing things and more can be commanded not only with my voice, they can be asked by anybody's voice.

Voice Recognition versus Speech Recognition

While Alexa has enviable speech recognition - the ability to understand and interpret natural language input by speech - she has yet to learn the skill of voice recognition. Often confused, voice recognition is the ability to uniquely distinguish between different people's voices by analysing physical and behavioural characteristics.

With voice recognition Alexa would know whether it was me (ie authorised) ordering that Nintendo Switch console from Amazon Prime, or if it was my Mario Kart-loving daughter trying her luck (sorry, denied). Did I just ask Alexa for a 2am alarm call or was somebody outside my living room window attempting to play a prank?

Amazon has no plans to introduce voice recognition into the Amazon Echo just yet. Nevertheless, there are steps that Echo owners can take to make sure they enjoy the convenience of a virtual assistant without the worry of being woken up by a 2am prank alarm call.

Pop over to TechRadar to read my 8 top tips to lock down your Alexa.