An urgent warning is being shared online ahead of a government emergency alert test message being sent widely this weekend.
Emergency Alerts have already been used successfully in a number of other countries, including the US, Canada, the Netherlands and Japan, where it has been widely credited with saving lives, for example, during severe weather events. In the UK, alerts could be used to tell residents of villages being encroached by wildfires, or of severe flooding, the Government has said.
But some women's groups fear the loud alarm set to sound from all UK mobile phones could alert domestic abusers to secret phones their victims may have.