As advertisers continue to boycott Facebook and Twitter, a number of Republican politicians and conservative pundits are flocking to the social media app Parler, partly to protest what they regard as unfair censorship.

Parler, which has been described by some as "Twitter for conservatives", has seen its user base grow by half a million in the space of a week, with Donald Trump supporters among those joining the app.

Andy O'Donoghue joined us for Tech Tuesday with more on this and the latest online scams.