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A username identifies the account you are trying to use. A password is secret information used to help verify that you are allowed to access that account. In short: the username says which account; the password is one possible proof of access.
What is a username?
A username is an identifier associated with a system account. When you enter one at sign-in, it tells the system which account is being presented. NIST describes individual identifiers as typically being usernames associated with the system accounts assigned to those individuals, while noting that this is typical practice rather than a rule every system must follow.
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Some systems use an email address, phone number, or another identifier instead of a separate username. The exact sign-in design depends on the system.
What is a password?
A password is secret information used during authentication or to verify access. In NIST digital identity terminology, a password is a memorized authenticator: evidence of “something you know.” Other NIST materials describe a password more broadly as a character string used for authentication or authorization; definitions can vary with the source and context.
#1 Best Overall
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How are a username and password different?
| Term | Function | What it does at sign-in |
|---|---|---|
| Username | Identifier | Indicates which account is being presented. |
| Password | Authenticator | Provides secret evidence used to verify access to the account. |
The distinction is between identifying an account and authenticating the person or process trying to use it. Authentication is the verification of the identity of a user, process, or device, often before access to system resources is granted.
Does every account use a password?
No. A password is one possible authenticator, not the only one. NIST guidance also recognizes physical authenticators and biometrics. Systems may use one method or combine methods, and the login experience varies by system.
Rank #2
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- 【A-Z Tabs for Quick Search 】Our password book comes with alphabetical tabs to help you find the password you need quickly and easily. Alphabetically organized tabs ensure that you can quickly flip to the right section, saving you the time and hassle of searching for your password.
Why might a username not identify just one person?
Although individual usernames are typical, some systems use shared or group accounts, and system users can also include processes acting on behalf of people. NIST notes that organizations may need to identify individuals who use group accounts or maintain accountability for individual activity. A username therefore identifies an account in a system; it does not, by itself, prove who is using it.
Quick Recap
Best Value
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Rank #4
- 【Tired of constantly searching for or resetting your passwords?】 MOSA BEAR password keeper book is the perfect solution for you! This password book provides a dedicated place to securely store all your important website addresses, emails, usernames and passwords, ensuring your information is protected and easy to find. The well-designed log pages help you manage multiple accounts in a systematic way, saying goodbye to password confusion.
- 【Premium Design & Password Security】 The password book with alphabetical tabs features an anonymous cover design with no title on the cover, effectively avoiding information exposure. The password keeper design is specifically designed with password security in mind, providing space to record password hints instead of writing directly on the password itself, further protecting your important information.
- 【Simple Layout and Plenty of Space】The 160-page password logbook is designed to provide ample space to record passwords and other important information. It can store up to 414 passwords. In addition, it provides extra pages to record other information, such as email setup, card information, computer operating system information, software licenses, and more. The journal also includes 3 blank pages at the end for you to add additional notes.
- 【Palm-sized Size & Premium Quality】 This password notebook has an ideal size, 4.3" x 5.7", for carrying around, whether in a purse or pocket. Its sturdy glue binding allows the notebook to unfold smoothly and is more comfortable to use. The inner pages are made of high-quality 100GSM thick paper, which can effectively reduce ink penetration and ensure a cleaner and neater writing effect. The overall design takes into account both portability and durability, making it an ideal choice for recording important passwords.
- 【A-Z Tabs for Quick Search 】Our password book comes with alphabetical tabs to help you find the password you need quickly and easily. Alphabetically organized tabs ensure that you can quickly flip to the right section, saving you the time and hassle of searching for your password.
Rank #3
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- Discreet Design for Secure Password Organization: With no title on the front to keep your passwords safe, it also has space to write password hints instead of the password itself! Finished with an elastic band for safe closure.
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