What is the Star Wars Twitter botnet which poses 'significant' cybersecurity risk?

Academics have found a massive, and hidden, swarm of over 350,000 Twitter bots themed around Star Wars that has laid dormant for roughly three years. They believe it is managed by a single person and could have “significant implications for cybersecurity”. Such bots are autonomous accounts that require no human input to function and spread.

Article Link: http://www.ibtimes.co.uk/what-star-wars-twitter-botnet-which-poses-significant-cybersecurity-risk-1603091