A Tokyo-based risk management firm is cautioning against a potential surge in coronavirus-related disinformation on April Fools' Day, alarmed by the recent spread of what it perceives to be baseless rumors on social media that the government is secretly preparing for the start of a Tokyo lockdown that day.

Unsubstantiated rumors pertaining to COVID-19 have been swirling online for months, but gossip with a more urgent tone and more fear-mongering in nature has emerged in recent days, making digital literacy against false rumors more important than ever, according to Tokyo-based Spectee Inc.

The firm says it uses cutting-edge artificial intelligence to monitor, collect and analyze the deluge of online information.