Best Practice Update

Breaking news in blue text, cyber attack on south london school. AI generated image of school hall with lots of computers with padlocks on the screen

Ransomware cyber attack on a school in Bromley

A high school in south London was closed for the first part of this term due to a ransomware attack.  Students were sent home advising parents that the school would be closed for three days while all staff devices were 'cleansed'.
An external cybersecurity company was completing a forensic investigation, but there is no further information about the data breach.

Who are BlackSuit?

It is now known that the ransomware gang, BlackSuit has claimed the attack on the school where it alleges to have stolen over 200GB of data which includes information on students and employees, as well as financial data.  BlackSuit seems to have carried out a double-extortion attack by encrypting systems and stealing data.

BlackSuit first emerged in April 2023 and is a rebrand of the ransomware group, Royal. BlackSuit is a private operation and doesn’t employ a ransomware-as-a-service business model.

Located in Biggin Hill, Kent, Charles Darwin School is home to around 1,320 secondary and sixth form students. The school is part of the Inicio Educational Trust which was formed in September 2023.

Sources of information: Comparitech and The Record

Improving Cyber Resilience


We would urge all schools and multi academy trusts to work on their cyber resilience, firstly by training their staff and making cyber awareness part of the organisation's ethos.  Secondly, we would recommend reviewing the DfE Digital Standards.  Our customers have access to a free Leadership & Governance Tracker to assess where you are with your digital strategy and Cyber Security Best Practice Area.  If you would like access to this and other trackers, further information can be viewed:



What to do in the event of a Cyber Attack 

Tell someone!  Report to IT. Report to SLT.

Unplug the computer from the internet by removing the ethernet cable or turning the Wi-Fi off. Isolate the infected device and pass to IT 

If you are a victim of a ransomware attack we would recommend reporting this to:
Action Fraud: https://www.actionfraud.police.uk/ as well as your data protection officer so they can advise about the data loss or your local police and ask for the cyber crime team or phone 101 and ask for the cyber crime team.

Most cyber crimes like these will also need to be reported to the ICO by your data protection officer. Our customers should email This email address is being protected from spambots. You need JavaScript enabled to view it..

These incidents should also be reported to the DfE sector cyber team at This email address is being protected from spambots. You need JavaScript enabled to view it..

Academy trusts have to report these attacks to ESFA.

Where the incident causes long term school closure, the closure of more than 1 school or serious financial damage, you should also inform the National Cyber Security Centre.

Always ensure there are backups you can restore from.  Preserving evidence is as important as recovering from the crime.

Forward suspicious emails to This email address is being protected from spambots. You need JavaScript enabled to view it.. Report SMS scams by forwarding the original message to 7726 (spells SPAM on the keypad).

Little Guide to ACTION FRAUD

Search