The insidious problem of online violence against women journalists is increasingly spilling offline with potentially deadly consequences, a new global survey suggests.
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Report Harmful Content is provided by UK Safer Internet Centre and operated by SWGfL.
UK Safer Internet Centre is a partnership of three leading organisations with one mission - to promote the safe and responsible use of technology for young people. The partnership was appointed by the European Commission as the Safer Internet Centre for the UK in January 2011 and is one of 31 Safer Internet Centres in the Insafe network.
BBC Reality Check team has looked into some of the most widely shared false claims: about alleged plots to put microchips into people, the supposed re-engineering of our genetic code, and about safety.
Children searching for content relating to depression and self-harm can be exposed to more of it by the recommendation engines built in to social networks.
Sophie Parkinson was just 13 when she took her own life. She had depression and suicidal thoughts.
Her mother, Ruth Moss, believes Sophie eventually took her own life because of the videos she had watched online.
Several countries around the world are considering regulating social media - but what might that look like?
A new report has put forward a tranche of ideas that its authors say could end the "informational chaos that poses a vital threat to democracies".
Instagram has launched new technology to recognise self-harm and suicide content on its app in the UK and Europe.
The new tools can identify both images and words that break its rules on harmful posts.