Lancaster Royal Grammar School has been the target of a serious cyber attack.
The attack happened on July 16, just before the summer holidays, after the school's IT department noticed something unusual.
Pupil databases, safeguarding or finance systems were not affected.
The school shut the system down, got advice from cyber experts, then rebuilt it from scratch over the summer holidays with added security, with no lasting damage.
The attack appeared to be by a professional group, who had asked for a ransom. The school did not interact with any demands.
Other schools in the Fylde area were affected by similar ransomware attacks.
Mohammed Patel, from cyber security firm Check Point, said: "The ransomware attack on Lancaster Royal Grammar School is a stark reminder of the escalating cybersecurity challenges faced by the education sector.
"Unfortunately, this isn’t an isolated incident. In recent months, we've seen multiple schools targeted, including a significant ransomware attack on the Fylde Coast Academy Trust in September 2024, affecting 10 schools and forcing them to revert to manual processes.
"Similarly, other schools have faced similar attacks, with some being locked out of their own systems for extended periods.
"Ransomware, in particular, is not just a threat to schools but is one of the top threats to organisations across the UK.
"To seriously address this, the education sector urgently needs to focus on proven cybersecurity solutions and strategies."


Appeal launched to help save Morecambe sports and social club
Reopening date announced after Morecambe Jobcentre closes for repairs
Lancaster charity urges residents to know how they’re affected by Renters' Rights Act
Lancaster district residents urged to check their details as annual electoral canvass begins
E-bikes and e-scooters seized during police crackdown on Lancaster cycle track
Four vehicles involved in road collision in Carnforth
LISTEN: Popular vlog tells story of couple's second-hand bookshop dream in Morecambe
Emergency team in Silverdale receives donation of life-saving kits
MP offers support to staff after Morecambe FC reported to The Pensions Regulator
Track night at Lancaster sports club to launch police safety scheme for women and girls
PHOTOS: Live music day to raise funds for homeless people in Lancaster hailed as huge success
Former bank turned live music venue in Morecambe to reopen under new management
New parking system set to launch at Royal Lancaster Infirmary
Museum in Lancaster up for award launched by TV historian David Olusoga
MP fights for refunds after Heysham medical centre patients get parking fines in error
Two teenagers arrested after car stolen during Hest Bank burglary
Parents demand further action after health watchdog probe into asbestos complaints at Lancaster school
LISTEN: Lancaster medical students praised for helping man who collapsed
Man arrested on Morecambe beach after report of assault
Police probe burglaries in villages near Carnforth

