The National Cyber Security Center recently issued an alert about a spike in so-called ransomware attacks affecting schools. Since that alert on the 23rd March 2021, the Harris Federation (one of the largest trusts in London) consisting of primary, secondary, and sixth form academies has suffered a ransomware attack. This cyberattack has shut down the IT systems, mail servers and telephone lines at primary and secondary academies in London.
Further information about the cyber attack can be found here: https://www.harrisfederation.org.uk/50/harris-highlights/post/92/ransomware-attack
https://gbhackers.com/ransomware-attack-has-infected-it-systems-at-schools-across-london/