Secrecy

thumb|A password field in a sign-in form A password, sometimes called a passcode, is secret data, typically a string of characters, usually used to confirm a user's identity. Traditionally, passwords were expected to be memorized, but the large number of password-protected services that a typical individual accesses can make memorization of unique passwords for each service impractical. Using the terminology of the NIST Digital Identity Guidelines, the secret is held by a party called the claimant while the party verifying the identity of the claimant is called the verifier. When the claimant

performing art involving the use of illusion

process of disclosing one's sexual orientation or other identity attributes

intentional inside joke, hidden message or image, or secret feature of a work

intelligence agency and or police agency, law enforcement office which operates in secrecy

description of any piece of fiction that reveals any plot elements

Omertà () is a Southern Italian code of silence and code of honor and conduct that places importance on silence in the face of questioning by authorities or outsiders; non-cooperation with authorities, the government, or outsiders, especially during criminal investigations; and willfully ignoring and generally avoiding interference with the illegal activities of others (i.e., not contacting law enforcement or the authorities when one is aware of, witness to, or even the victim of certain crimes).

business information kept secret to gain or maintain a competitive advantage

voting style that makes each vote anonymous

thumb|150px|One of two known Phoenician Harpocrates statues

1994-2011 policy on gay people serving in the US military

Confidentiality involves a set of rules or a promise sometimes executed through confidentiality agreements that limits the access to or places restrictions on the distribution of certain types of information.

the agreement between a financial institution and its client

contractual agreement not to disclose specified information

operation of an intelligence agency or the military that is so planned and executed as to conceal the identity of or permit plausible denial by the sponsor

thumb|U.S. soldier at camp during World War II thumb|upright|Loose lips might sink ships, World War II slogan Secrecy is the practice of hiding information from certain individuals or groups who do not have the "need to know", perhaps while sharing it with other individuals. That which is kept hidden is known as the secret.

alias of Mark Felt, the whistleblower who exposed the Watergate scandal

thumb|Confession of Love by Jean-Honoré Fragonard depicts a subject confessing feelings that had been concealed up to that point.

surrogate organization answering to someone else

secrecy of the design or implementation as the main method of providing security

journalist right

thumb|Sgt. Slaughter and The Grand Wizard, both wrestling characters

something that is easily knowable in practice but "officially" secret, or acknowledged by only a few

phrase meaning secrecy

method for organizing a group of people, such as resistance fighters, spies, mercenaries, organized crime members, or violent extremists, to make it harder for police, military or other hostile groups to catch them

personal identity less known to a public than another identity or persona

undisclosed negative fact about someone

informal rule among police officers not to report on a colleague's errors, misconducts, or crimes, including police brutality

proposed motif primarily in the Gospel of Mark in which Jesus is portrayed as commanding his followers to silence about his Messianic mission

unsanctioned release of confidential information to news media

treaties between sovereign states hidden from public knowledge

form of bribery

binding statute, regulation, policy, or directive that has been kept secret from the person to whom it applies

code of confidentiality that applies in matters that require greater than ordinary confidentiality in the Roman Catholic church

trial that is not open to the public, nor generally reported in the news