The number of enrollees so far represents a small fraction of those eligible for health insurance under the so-called Obamacare law passed in 2010.
Henry Chao, deputy CIO at CMS, and other Obama administration officials defended the security practices at HealthCare.gov during an often contentious oversight committee hearing Wednesday.
The future of the Web is encryption, though there are still some technical details to work out.
What's wrong with HealthCare.gov? Here are some answers.
The Silk Road online marketplace has resurfaced.