Online Extortion Demand Affecting UK Businesses

The information contained within this alert is based on a number of reports made to Action Fraud. The purpose of this alert is to make businesses aware of the problem and to share information with other Law Enforcement Agencies.

Within the past 24 hours a number of businesses throughout the UK have received extortion demands from a group calling themselves ‘RepKiller Team’.

Method of Attack:

The group have sent emails demanding payment of between £300 – £500 in Bitcoins by a certain date and time.

If their demand is not met, they have threatened to launch a cyber attack against the business and its reputation by automating hundreds of negative reviews online.

The demand states that once their actions have started, they cannot be undone.

Protection / Prevention Advice

If you have received such a demand, or receive one in the future, you are advised to:

  • Make a report to Action Fraud on 0300 123 2040 or via the online reporting tool on
  • Do not pay the demand
  • Retain the original emails (with headers)
  • Maintain a timeline of the attack, recording all times, type and content of the contact

All affected businesses, whether the attack is attempted or successful, should report in the first instance to Action Fraud on 0300 123 2040 or via

If you want to learn about Cyber Security, check out our new Cyber Security & Protection Essentials course below.


Thanks to the Gloucestershire Police for alerting us to this information.

Action Fraud is the UK’s national fraud and internet crime reporting centre, providing a central point of contact for information about fraud and financially motivated internet crime