Detailed and potentially sensitive information uploaded by firms including Clifford Chance, Slaughter and May, Weil Gotshal & Manges and White & Case was left “exposed” on an open database platform, according to a report by a cybersecurity firm.  

The cache of data, which included Companies House forms, partial security authentication details, business email addresses and encrypted passwords, were accessible on a historic database owned and operated by British tech giant Advanced Computer Software, the report says.