This comes as the site was down yet again Sunday.
Michigan Representative Mike Rogers heads up the House Intelligence Committee and he says with all the glitches the site has, those entering in their personal information are setting themselves up for identity theft and other cyber-crimes.
The Obama administration is promising to fix the new healthcare website by the end of November, but many say that's too late.
Health and Human Services Secretary Kathleen Sebelius addressed concerns over cyber threats in a blog post published over the weekend.
She says healthcare.gov quote - "doesn't retain or store information" and she called the online marketplace a "model of efficiency and security."
But Rogers says the site needs a complete overhaul to insure safety.
"They do not have an overarching solid cyber-security plan to prevent the loss of private information. I'm even more concerned today than I was even last week. I know that they've called in another private entity to try to help with the security of it. The problem is they may have to redesign the entire system. The way the system is designed, it is not secure," said Mike Rogers on CNN's State of the Union with Candy Crowley.
And there's a lot to watch in Washington this week. Monday kicks off another week of testimony before a House committee on the overhaul website.
Those responsible for it will be answering some tough questions.
In the meantime, some lawmakers are now calling for a delay in the so-called "individual mandate" which requires all Americans to have health insurance by March 31st of next year or pay a fine.