Jessica davis reports: december 18, 2019�–�The Centers for Medicare and Medicaid Services has taken its blue button 2.0 API�offline, as it investigates a coding error that potentially exposed the protected health information of about 10,000 beneficiaries. The�BB2.0 platform is used by Medicare beneficiaries to authorize third-party applications to access their Medicare claims data. The system verifies user credentials through a CMS identity management system, using a randomly generated, unique user ID generated by the system. Read more on health ITSecurity.