UniCredit said hackers accessed about 400,000 client bank accounts in Italy, taking biographical and loan data in one of the biggest breaches in Europe to date.

Estonia, the only country in the world where voters elect their leaders through online balloting, is taking steps to fend off potential hacking attacks as cyber-security fears intensify.

Cyber crime insurers largely avoided costly claims from the recent attacks that hit businesses around the globe but the next global virus could change that, a leading global insurer has warned.

Update 8:11pm: Shipping group Maersk has been affected by the ongoing global cyber attack as its computer systems failed across multiple regions, including Ireland and the UK.