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Voice assistants (e.g. Amazon Echo, Google Nest) can control everything from lights to locks, making them a potential target for hackers. If not secured, attackers could theoretically issue fake voice commands, sometimes even by playing a sound through the speaker itself.

Expert tips for better video calls for business and pleasure The ultimate guide to picture-perfect web conferencing and online chats Girts Ragelis/Shutterstock With much of the planet's population under some sort of lockdown, video calling has exploded in popularity and is proving to be absolutely indispensable. Yet whether you're working from home or simply want to stay in touch with family and friends, nailing the whole virtual chat thing can be a challenge. Luckily, we've got you covered.