The Cyber Intelligence Sharing and Protection Act, or CISPA, a bill that makes it easier for companies to share information with other companies and the government about cyber attacks, once again passed in the House of Representatives Thursday.

The controversial bill made it through on a bipartisan vote of 287-127 and 18 representatives not voting. But there are doubts the legislation will get through a Democrat-controlled Senate, and the Obama administration threatened to veto the bill earlier this week.

Those opposed to the legislation argue that the bill would give companies and the government easy access to private data and absolve them of legal liability for digging through it.

Advocacy groups such as the ACLU and EFF warn that the bill could supersede existing privacy agreements, while major tech lobby groups have pressed its passage. Only a small number of companies, including Mozilla, Craigslist, and Reddit, have actively opposed it.

"We're obviously disappointed in the outcome of the House vote on CISPA, but Internet freedom and privacy advocates have reason to be optimistic," David Segal, executive director of Demand Progress, told the Los Angeles Times. "We're prepared to make a strong stand for privacy rights in that chamber, if similar legislation even sees the light of day there."