Confidentiality is the property of maintaining the secrecy of an asset. In other words, confidentiality means protecting against the threat of disclosure. It is one of the three key security properties of an asset, along with confidentiality and availability.
Confidentiality is the property of maintaining the secrecy of an asset. In other words, confidentiality requires that only authorized parties may be able to obtain the data. It is one of the three elements in the classic CIA triad of security properties, alongside integrity and availability.
Typical measures to enforce confidentiality include physical protection (e.g. keeping papers in a locked safe) and cryptography, via encryption.