Companies hit with cyber attacks in the last year are experiencing increased employee burnout and sick days, and a spike in toxic work culture after the attack, according to insurance company Hiscox.

The debt acquisition and credit servicing firm had 394,000 stolen, including material related to its direct customers and its loan book

Monday's classes have been cancelled as a result, except laboratory classes, with the campus being left with no internet and access to other online facilities

Customers who recently bought tickets online have been told their financial information may be at risk

A number of Government websites were targeted in cyberattacks overnight as local and European election vote counting continues

Micheál Martin's department was notified about the incident by the National Cyber Security Centre on Thursday

The MTU annual report said the direct costs associated with the cyberattack currently stood at €3.5 million.