Singapore hit by major cyber attacks: data of 1.5 million healthcare patients leaked State-sponsored hackers bypassed the cyber security thanks to an unpatched version of Microsoft Outlook and… Singapore hit by major cyber attacks: data of 1.5 million healthcare patients leaked 18 January 2019 Francesco Bussoletti Cyber, Defence and Security State-sponsored hackers bypassed the cyber security thanks to an unpatched version of Microsoft Outlook and customized malware. It’s a cyber espionage Op.