Is there a legal term for this action because I looked for the stab me in the back law, but, no such law?

As with most things, it depends. If truly confidential information was disclosed, that is a breach of the attorney client privilege and can result in a complaint to the state bar along with a possible malpractice claim. However, if the information shared was something that should have been disclosed as part of the normal discovery process, then there is no breach. For example, if you told your attorney about a bank account and the attorney listed that account in a pleading, there is no breach as the account, by law, must be disclosed.