Meghan Markle said she has no social media accounts "for her own self-preservation" and has no idea what is being said about her online.
Meghan, who with her husband Prince Harry left the UK earlier this year partly as a result of media hostility, has been campaigning for months against the effects of negative online chatter.
"For my own self-preservation, I have not been on social media for a very long time," Meghan told Fortune magazine's Most Powerful Women Next Gen Summit.
"I made a personal choice to not have any account, so I don’t know what’s out there, and in many ways that’s helpful for me," she added.
Meghan said she closed down her personal account years ago and that her and Harry's now-defunct official Sussex Royal Instagram and Twitter account were managed by others.
Harry and Meghan now live in Southern California after stepping down from their royal roles in March to forge a new life and finance it themselves.
Last weekend, in a podcast conversation with teens to mark World Mental Health Day, Meghan said she had been told that "in 2019 I was the most trolled person in the entire world - male or female".
Oasis, the biggest British rock band of the 1990s, kick off their reunion tour in Cardiff on Friday, bringing the warring Gallagher brothers back together on stage for the first time in nearly 16 years.
K-pop supergroup BTS will head to the United States this month to start working on new music and will launch its next album early next year ahead of a world tour, it said on Tuesday.
King Charles has decided to scrap Britain's royal train, a service dating back to Queen Victoria, because it is no longer cost-effective, as the monarchy sees its public funding soar by an extra 46 million pounds ($63 million) for the next two years.
Apple's high-octane racing film "F1: The Movie" roared to the top of the US and Canadian box office this weekend, fuelled by star-power and a finely-tuned marketing campaign, according to Comscore.