Cryptographic smart cards are often used for single sign-on.

Smart cards are also used for single sign-on to log on to computers.

A lot of interesting companies are doing stuff around single sign-on.

It serves as a "single sign-on, central access point to online benefits and related services" for veterans.

Systems which require the user to log in multiple times to the same identity are inherently not single sign-on.

In future, you will be able to use your profile as a single sign-on for all Telegraph services, including crosswords and competitions.

And that's what we mean when we say "single sign-on."

Incorporating some form of single sign-on means that the flow on effect to other controls can be seamless.

Most can allow internal and external access to specific corporate information using secure authentication or single sign-on.

Using smart cards is also a form of strong security authentication for single sign-on within large companies and organizations.