A few days ago, we removed multiple Pages, Groups and accounts that originated in Iran for engaging in coordinated inauthentic behavior on Facebook and Instagram. This is when people or organizations create networks of accounts to mislead others about who they are, or what they’re doing. We prohibit coordinated inauthentic behavior on Facebook because we want people who use our services to be able to trust the connections they make.
As soon as we detected this activity, the teams in our elections war room worked quickly to investigate and remove these bad actors. Finding and removing abuse is a constant challenge. Our adversaries are smart and well funded, and as we improve their tactics change.
To ensure that we stay ahead we’ve invested heavily in better technology and more people. There are now over 20,000 people working on safety and security at Facebook and thanks to improvements in artificial intelligence we detect many fake accounts, the root cause of so many issues, before they are even created. We’re also working more closely with governments, law enforcement, security experts and other companies because no one organization can do this on their own.
Source : Facebook