The ransomware group reportedly breached the company via a zero-day exploit
Care centres are closed from California to Rhode Island
The executable uses 'Sophos' in the ransom notice and the '.sophos' extension for encrypted files
Black Cat hackers claim that the data obtained from Barts Health NHS Trust represents the 'more bigger leak from the health care system in UK'
Seeking evidence of links between the ransomware gang and state authorities
'We are working urgently to understand impacts and ensure timely remediation'
List of Clop gang's victim grows as new glitches are patched and a PoC exploit is released by researchers