Facebook's Meta says bad actors are changing tactics as it takes down six more groups

Meta has detailed takedowns of what it described as six ‘adversarial networks’ from across the world that were using Facebook for behaviour including spreading false information, harassment and trying to have genuine information taken down.

It said the groups violated its rules around Coordinated Inauthentic Behavior and two new policies: Brigading and Mass Reporting.

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Facebook defines Brigading as networks of people work who together to mass comment, mass post or engage in other types of repetitive mass behaviors to harass others or silence them. Mass Reporting is when people work together to mass-report an account or content to get it incorrectly taken down by Facebook.

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Meta said it had removed a network in Italy and France for Brigading: “We removed a network of accounts that originated in Italy and France and targeted medical professionals, journalists, and elected officials with mass harassment,” said Nathaniel Gleicher, Meta’s Head of Security Policy in its Adversarial Threat Report. “Our investigation linked this activity to an anti-vaccination conspiracy movement.”

In Vietnam, Meta targeted networks attempting to use mass reporting, via duplicated but legitimate accounts, to have accurate news reports criticizing the government taken

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