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The online auctioneer decided to stop supporting the service after Microsoft made an "architectural change" to its online authentication service, an eBay representative told CNET News.com on Thursday.
The company's withdrawal of support and Microsoft's changes to the service were not unexpected developments and part of the planned evolution of Passport, Microsoft responded in a statement.
"Over the past couple of years, Microsoft learned a lot working with partners and customers, and shifted the focus of the (Passport) service to serve as a great single sign-on solution for consumers of MSN and Microsoft online services, as well as working with close partners where it made sense for both parties," the company said.
Passport to nowhere?
system have fizzled, analysts say.
As reported by CNET News.com earlier this year, Microsoft has slowly been paring back Passport. The service acts as a central storage for personal information such as credit card numbers for use when shopping online. It also can act as a single sign-in and password for all a person's online accounts.
eBay's move comes as companies increasingly throw their weight behind federated identity standards, which allow each company to vouch for the identity of its users, rather than handing over control of the information to an outside company such as Microsoft.
Much like countries' passport systems, from which Microsoft's service takes its name, federated identity services allow users to be "citizens" of certain services and have those services vouch for their identity.
The federated service with the most support so far is the Liberty Alliance, a group of technology providers and corporations that includes Fidelity and American Express. Founded by Sun Microsystems and others in 2001, the consortium now has more than 150 members. eBay is not a member of the Liberty Alliance.
eBay is the latest Microsoft partner to give the Passport system an exit visa. Online job site Monster.com dropped support for Microsoft's service on Oct. 22. A list of sites that had partnered with the software giant has been removed from the company's Web site, making it difficult to tally.
The risks for companies of relying on a single provider of authentication services were highlighted when several flaws were revealed in Microsoft's Passport last year. The glitches did not just create doubt about the service's security but also exposed Microsoft to potential legal repercussions.
eBay would not comment on the topic on Thursday or give any further details of its decision to ditch Passport.
- More from News.com on this story's topics
Internet
Privacy
Authentication and encryption
Security implementation/standards
Web sites
Microsoft
eBay
See more CNET content tagged:
Microsoft Passport,
identity federation,
eBay Inc.,
authentication service,
Liberty Alliance
the repository for everyone's personal information, and very
personal and detailed information. No one trusts MS anyway,
and Passport was asking for maximum trust without doing
anything to earn it. MS should have dropped it years ago, but
even now, MS seems to believe that they alone can keep it going.
Eventually, Passport, WIndows, IE/OE, and other MS screwups wil
all wind up on the computer junk heap. Can't wait.