Co-founder of expert group says ‘unchecked power of these entities poses grave risk’ to news environment

Social media owners, politicians and governments are the biggest threats to a trustworthy online news environment, according to an expert group studying misinformation whose work is modelled on the UN’s Intergovernmental Panel on Climate Change.

The International Panel on the Information Environment (IPIE) said owners of social media platforms topped a survey of concerns, followed by domestic and foreign governments and politicians.