A school is reopening tomorrow (January 31) after a cyberattack affected its IT systems.

The Misbourne in Great Missenden, with 1,066 pupils, closed last week because of a ransomware attack which compromised some of the Academy's IT systems.

It partially reopened on Monday to students in Year 11 and 13, however headteacher Rich Peters is letting all students back in from Wednesday.

In a letter to parents, he said: "I am sure you will be both delighted and relieved to hear that, having consulted with trustees and all agencies involved in the recovery process following last Tuesday’s cyberattack, we are able fully to re-open our doors at The Misbourne from tomorrow.

"Whilst significant progress has been made on the restoration of our IT infrastructure, there are still issues that are being worked through, which have the following implications: 1.

"At present, we have no working wifi across the Academy site - we anticipate this will not be in place until after February half-term."

Year 7 students will need to leave their Chromebooks at home until the school's wifi system has restored.

Sixth-form students are also required to be on-site for lesson time.

Mr Peters added: "For students who arrive by bus or cannot get home, they may hot-spot onto their own devices to work on-site, if they have that facility, when not in lessons.

"Our electronic system for registering whether Sixth Formers are on or off-site - Inventry - is not yet online either, which means that it is essential that Sixth-Formers sign-in or sign-out on the tutor group lists in the Sixth Form Study Centre whenever they arrive on site or leave - it is vital for emergency evacuation procedures that we have a ‘live list’ of who is on-site.

"Providing that our Sixth-Formers can achieve this responsibly, they need only attend scheduled lessons and can leave site should they wish for non-contact periods, to work at home. If a Sixth Former usually parks in the Sports Hall car park, but plans to leave site before lunchtime if they do not have lessons, they should park elsewhere.

"We currently do not have our ICT PC suites restored, but anticipate this should be resolved by the end of this week.

"I would like once again to thank everyone who has worked behind the scenes to help get us to the position of being able fully to reopen; a recent article published 5 days ago on the impact of cyberattacks worldwide states that, on average, it takes recovery teams 427 hours to investigate, clean, fix, and document a successful phishing attack; we have been able to restore services to the point of reopening within 168 hours.

"Our expert support network is continuing over the coming weeks to supervise the restoration of services, the forensic analysis of the source of the attack, and the strengthening of all structures and protocols, and we will continue to communicate with families should there be any further news.

"I look forward to seeing our students back at 8.30am tomorrow, and our Year 9 families on site on Thursday evening (5.30pm) for our Guided Choices Evening."