Phys.org - password ( ... sorted: rank/1m)

Home
password
sorted by rank

Passwords: How to choose one and why we need them

I just did a count of the systems I use that require a password and gave up at 40. I know I'm not alone; for many of us, it often seems we have too many passwords to manage.

Technology - Internet

May 07, 2013

4 / 5 (4)

Deals site LivingSocial says it's been hacked

Online deals service LivingSocial said Friday that its website was hacked, and the personal data of more than 50 million customers may have been affected.

Technology - Internet

Apr 26, 2013

4 / 5 (1)

Teenage password security

Many of us are sharing increasing amounts of personal information through online social media sites, including Facebook, Twitter, LinkedIn and others. However, according to Charlott Lorentzen, Markus Fiedler and Henric Johnson ...

Technology - Internet

Apr 26, 2013

not rated yet

Password

A password is a secret word or string of characters that is used for authentication, to prove identity or gain access to a resource (Example: An access code is a type of password). The password must 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. Sentries 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 may require passwords for many purposes: logging in to computer accounts, retrieving e-mail from servers, accessing programs, 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.

For the purposes of more compellingly authenticating the identity of one computing device to another, passwords have significant disadvantages (they may be stolen, spoofed, forgotten, etc.) over authentications systems relying on cryptographic protocols which are more difficult to circumvent.

This text uses material from Wikipedia, licensed under CC BY-SA

Subscribe to rss feed