The results show that nearly a quarter of the accounts tweeting about the NBA in the days after the incident had a higher than 50% chance of being bots or trolls. Many of these “suspect” accounts were created soon after Mr Morey’s tweet. Indeed, in the following week, the number of new suspect accounts increased by 400% over the previous seven days. In that earlier week, about 47% of the newly-created accounts in our sample were suspected of malicious activity by the machine-learning algorithm. After the tweet, this proportion rose to 60%.