Study Finds Major Weaknesses in Single Sign-on Systems, PCWorld, ‎March 27, 2012

Flawed sign-in services from Google and Facebook imperil user accounts, Ars Technica, ‎March 25, 2012

Trial finds EIGHT WAYS to defeat Google, PayPal and other SSOs, Multiple flaws in web service single sign-on, The Register, ‎March 20, 2012

Web Services Single Sign-On Contain Big Flaws, Dark Reading, ‎March 19, 2012

Researchers discover "worrisome" authentication flaws in many online services, sites, ZDNet, ‎March 16, 2012

Informatics students discover, alert Facebook to threat allowing access to private data, PhysOrg, ‎Feb 3, 2011

New Facebook vulnerability patched, ComputerWorld, Feb 2, 2011

Facebook Fixes Security Vulnerability, eWeek, Feb 2, 2011

Facebook plugs gnarly authentication flaw, Register, ‎Feb 2, 2011‎

Facebook flaw allowed websites to steal users' personal data without consent, Graham Cluley's blog, Feb 2, 2011‎