What is the rights term to describe 'account - related issue, details or information" that should not be shared publicly , by only to individual who should know it

The term you're looking for is "confidential information." This refers to account-related issues, details, or information that are sensitive and should only be shared with authorized individuals who have a need to know. Other related terms could include "sensitive information" or "private information," but "confidential information" is the most commonly used term in this context.