In 2015, university researchers from Cornell and Stanford released a study which they said could identify online trolls with around 80% accuracy, using a specific methodology.
Since then there have been numerous trolling cases both in the UK and abroad, with people deliberately posting offensive or provocative posts online.
Researchers highlighted some key indicators such as bad grammar, spelling and punctuation in posts by trolls.
Watch this video to learn more of the tell tale signs.
Produced Claudia Romeo
Business Insider Emails & Alerts
Site highlights each day to your inbox.