History
Web access management products originated in the late 1990s, and were then known as single sign on. Four of the original products were Hewlett-Packard HP IceWall SSO, CA Technologies SiteMinder, Oblix Access Manager and Magnaquest Technologies Limited IAM (Identity and Access Management). These products were simple in their functional capabilities, but solved an important issue of the time – how to share user credentials across multiple domains without forcing the user to log in more than once. The challenge stemmed from the fact that cookies are domain-specific, so there was no simple way to seamlessly transfer a user from one website to another. Since then, "single sign on" has come to mean technology that lets users store all of their passwords in a browser plugin which auto-fills login screens for them (such as RoboForm). The new term became known as web access management, because products added the functionality of controlling which resources (web pages) a user could access, in addition to authenticating them.
Read more about this topic: Web Access Management
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