"Complete confidentiality" means that information shared or known by someone is kept completely secret and private, without being revealed to anyone else. Full definition
Complete confidentiality of information: We do not share nor lend any private information that may reveal your identity to any third party. (hirepaperwriter.com)
Maintained complete confidentiality with private client information to provide professional, secure services. (resume-resource.com)
The solution is an international center of religions with a discussion center and with a TV station where you may be connected through internet to discuss and you can be connected with complete confidentiality. (religion.blogs.cnn.com)