The US Senate has become the latest organization to tell its members not to use Zoom because of concerns about data security on the video conferencing platform that has boomed in popularity during the coronavirus crisis.

The Senate sergeant at arms has warned all senators against using the service, according to three people briefed on the advice.

One person who had seen the Senate warning said it told each senator’s office to find an alternative platform to use for remote working while many parts of the US remain in lockdown. But the person added it had stopped short of officially banning the company’s products.