Final answer:
The most common privacy violations include impermissible disclosures to authorized and unauthorized persons, as well as impermissible disclosures in formal settings and in written form.
Step-by-step explanation:
The most common privacy violations include impermissible disclosures to authorized persons, impermissible disclosures to unauthorized persons, impermissible disclosures in formal settings, and impermissible disclosures in written form. Impermissible disclosures to authorized persons refer to situations where confidential information is shared with individuals who have the proper authorization but should not have access to that specific information. Impermissible disclosures to unauthorized persons occur when confidential information is shared with individuals who do not have the necessary authorization to access that information.