The personal information of nearly 14,000 staff at Liverpool's main hospital trust were accidentally emailed to hundreds of people.
A file was sent by email to a number of managers at the Liverpool University Hospital Foundation Trust (LUHFT) - which includes the Royal and Aintree hospitals - which included the personal information of thousands of staff members including names, addresses, National Insurance numbers and salaries.
The file - which was sent to hundreds of managers at the trust - included a hidden tab with the personal information of the thousands of staff members. The incident has now been reported to the Information Commissioner.