China accused of flooding social media with spam to cover up Covid protests

US firm says network of bot accounts also hijacking hashtags in large-scale attempt to obscure coverage

An attempt to flood social media platforms with spam in order to drown out coverage of the lockdown protests in China was probably backed by the Chinese government, according to analysis by a US cybersecurity firm.

Recorded Future found that networks of coordinated bot accounts were targeting non-Chinese social media platforms to crowd out genuine posts about the demonstrations with spam content and by hijacking hashtags of names of Chinese cities. It said China's government was most likely to be behind the tactic.