Is social media a curse? British officials have launched a new campaign warning teenagers about online blackmail.
Alert to teachers over ‘sextortion’ epidemic

Glossary
National Crime Agency - A UK national law enforcement agency. It targets organised crime, trafficking, cybercrime and economic crime.
Blackmail - Demanding payment (or another action) from someone in return for not revealing damaging information about them.
Government - The group of people who govern - or lead - the country.