Password

A password is a secret word or string of characters that is used for user authentication to prove identity, or for access approval to gain access to a resource (example: an access code is a type of password). The password should be kept secret from those not allowed access. The use of passwords is known to be ancient. Sentries would challenge those wishing to enter an area or approaching it to supply a password or watchword, and would only allow a person or group to pass if they knew the password. In modern times, user names and passwords are commonly used by people during a log in process that controls access to protected computer operating systems, mobile phones, cable TV decoders, automated teller machines (ATMs), etc. A typical computer user has passwords for many purposes: logging in to accounts, retrieving e-mail, accessing applications, databases, networks, web sites, and even reading the morning newspaper online.

Despite the name, there is no need for passwords to be actual words; indeed passwords which are not actual words may be harder to guess, a desirable property. Some passwords are formed from multiple words and may more accurately be called a passphrase. The term passcode is sometimes used when the secret information is purely numeric, such as the personal identification number (PIN) commonly used for ATM access. Passwords are generally short enough to be easily memorized and typed.

Most organizations specify a password policy that sets requirements for the composition and usage of passwords, typically dictating minimum length, required categories (e.g. upper and lower case, numbers, and special characters), prohibited elements (e.g. own name, D.O.B., address, telephone number). Some governments have national authentication frameworks that define requirements for user authentication to government services, including requirements for passwords.

Read more about Password:  Memorization and Guessing, Factors in The Security of A Password System, Password Cracking, Alternatives To Passwords For Authentication, Website Password Systems, History of Passwords

Other articles related to "password, passwords":

Sarah Palin Email Hack - Incident
... Yahoo!.) in "15 seconds." The hacker posted the account's password on /b/, an image board on 4chan, and screenshots from within the account to WikiLeaks ... A /b/ user then logged in and changed the password, posting a screenshot of his sending an email to a friend of Palin's informing her of the new password on the /b/ thread ... However, he did not blank out the password in the screenshot ...
Million Dollar Password
... Million Dollar Password is an updated version of the game show Password on CBS, which was hosted by Regis Philbin and ran from June 1, 2008 to June 14, 2009 ...
List Of Late Night With Jimmy Fallon Sketches - Recurring Segments Featuring Celebrity Guests - Password
... After showing a brief clip of the original black-and-white Password from the 1960s (originally hosted by Allen Ludden, Betty White's husband), Jimmy ...
History of Passwords
... Passwords or watchwords have been used since ancient times ... Passwords in military use evolved to include not just a password, but a password and a counterpassword for example in the opening days of the Battle of Normandy. 101st Airborne Division used a password — flash — which was presented as a challenge, and answered with the correct response — thunder ...
Last Pass Password Manager - Security Breach
... data such as email addresses, the server salt, and the salted password hashes were copied from the LastPass database ... all users to change their master password ... were asking users to refrain from changing their password until further notice, having judged that the possibility of the passwords themselves being compromised ...