The Senate is poised to pass a bill intended to improve cybersecurity by encouraging the sharing of threat information among companies and the U.S. government.
Senators were voting on a handful of amendments Tuesday before a final vote expected later in the day on the Cybersecurity Information Sharing Act.
The amendments target concerns over privacy and transparency that were raised by some senators and technology companies, such as Apple.
Bill co-sponsors, Sens. Dianne Feinstein of California and Richard Burr of North Carolina, say the bill is needed to limit high-profile cyberattacks, such as the one on Sony Pictures last year.
More than 21 million Americans recently had their personal information stolen when the Office of Personnel Management was hacked in what that the U.S. believes was a Chinese espionage operation.