While honesty and candour should be every CIO’s watchwords, there are some times when keeping quiet may be a good option.
Successful CIOs have a great relationship with the chief executive. Engaged IT leaders – as ZDNet has looked at before – keep their CEOs informed about technology issues and business decisions.
But what about the corollary: is there anything a CIO should never tell the CEO? Engagement might be the watchword for successful IT management but what knowledge should technology chiefs keep close to their chests? 
 By Mark Samuels, ZDNet