I keep your personal details, and everything you say or write to me in absolute confidence. The only instances in which another ethical/legal obligation may override this, meaning that I may need to share some of the information which I hold, are:-
1. if I have extremely good reason to believe that you are likely to pose a serious threat to yourself or someone else, e.g. suicide, homicide, sexual abuse, or terrorist activity.
2. if my professional obligation to preserve confidentiality is removed by a court of law (this rarely happens but it's possible).
I would if at all possible discuss whatever breach in confidentiality I intended to make with you first.
The only other case in which I may talk about my work with you is in supervision. Supervision is a confidential relationship between professionals which provides consultation and support, and ensures that my work is as effective as possible. In the UK it is an ethical obligation for every practicing counsellor to have regular supervision.