The US House of Representatives has passed the controversial Cyber Information Sharing and Protection Act.
Cispa is designed to help combat cyberthreats by making it easier for law enforcers to get at web data.
This is the second time Cispa has been passed by the House. Senators threw out the first draft, saying it did not do enough to protect privacy.
Cispa could fail again in the Senate after threats from President Obama to veto it over privacy concerns.
A substantial majority of politicians in the House backed the bill.
The law is passing through the US legislative system as American federal agencies warn that malicious hackers, motivated by money or acting on behalf of foreign governments, such as China, are one of the biggest threats facing the nation. Read more