Both companies launched investigations and were required by US law enforcement agencies todelay notifyingaffected patients until now.

Nuance has previously faced accusations of improperly managing access that former employees may still have.

Since becoming part of Microsoft three years ago, Nuance’s security issues now direct affect its parent company.

Microsoft subsidiary Nuance blamed for data-stealing incident caused by a former employee

CEO Satya Nadella recently stated thatoperational securityis a top priority for the company.