Conspiracy theories linking 5G technology to coronavirus have resulted in dozens of phone masts across the UK being vandalised in recent weeks. Theories about the dangers of 5G had already been circulating, despite regulators confirming that the radiation levels of the new technology are well within safe boundaries. So how did the conspiracy incorrectly linking it to 5G start? And is 5G really dangerous? We explain why 5G has nothing to do with Covid-19