A spokeswoman said that initiative was not an attempt to catch 'moles' - it was simply raising awareness about respecting confidentiality.
In October, the council's management team looked at complaints relating to the disclosure of information to the public. Although the issue was dealt with within the particular department, it was felt information 'may have been inadvertently disclosed'.
'Because of this it was agreed that an inter-departmental group be set up to look at ways of highlighting to staff the importance of not releasing sensitive information.'
'It is appreciated that such information can be discolsed inadvertently and this demonstrates the need for vigilance.'
But The Post's leader column states: 'What the public wants and expects from its elected representatives is transparency and honesty.'