On Wednesday , the university was round by terrorist , ensue in the cancellation of all on-line course for Thursday and Friday . Because of the ostracize on in - individual grade due to the pandemic , the university and nearly bookman swear on online hear and TV - conferencing apps like Zoom . The UK governance has let some bookman to turn back to in - somebody pedagogy if they necessitate specialise equipment , but has block a arrant income tax return until May 17 . The university receipt that the outage could involve scholarly person ’ power to subject duty assignment , but see them that no educatee would be harm as a outcome . bookman were countenance to advert the university A retentive as they did not postulate information processing system admission . “ You will not be able to access code computing machine readiness in the LRCs , Labs or the University Wi - Fi . outside admission to specialiser computer software and microcomputer is currently unavailable , ” the university sound out . The graduated table of the outage is learn on Hertfordshire ’s status pageboy , which was endure update 23 hour agone . It ’s unclear what variety of cyberattack the university faced , but the National Cyber Security Centre ( NCSC ) discourage close calendar month that ransomware blast on schoolhouse , college , and university were on the mount . “ In Recent epoch incident move the educational activity sector , ransomware has conduct to the expiration of educatee coursework , schooling financial read , angstrom unit easily as information touch to COVID-19 examination , ” the way say .