What is or has the U.S. government done to counter its influence? Have these actions been effective? How or how not? What else can we do to lessen its influence/effects?

Despite numerous laws and the intervention of the government, terrorists and malicious nation-state actors have been using technology to further their goals and objectives. Such technologies include the use of fake accounts, bots, forums, cryptocurrency, commodity malware, etc.
Discuss one technology that is being used by these groups for nefarious purposes.
What is or has the U.S. government done to counter its influence?
Have these actions been effective? How or how not?
What else can we do to lessen its influence/effects?

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