Dive Brief:

• Senators may vote on the Cybersecurity Information Sharing Act (CISA) as soon as today.

• Privacy groups oppose the bill — which is intended to encourage businesses to share cyberthreat information with each other and with government agencies — claiming it does not adequately protect personal information.

• Senate Majority Leader Mitch McConnell said he will schedule a cloture vote on Wednesday morning if no compromise to address privacy is reached.

Dive Insight:

A cloture vote would limit debate on the bill and move the Senate toward final passage.

A recent campaign against the bill, however, resulted in more than six million faxes sent to Congress, and the Department of Homeland Security has also raised concerns.

CISA could "contribute to the compromise of personally identifiable information by spreading it further," DHS personnel recently said in a letter.

But supporters of CISA say the legislation in needed to encourage businesses — which are often afraid to share information because of the potential for customer lawsuits — to collaborate to fight cybercrime.

CISA is the “one piece of legislation” that could help fix U.S. cybersecurity weaknesses, said former U.S. Representative Mike Rogers. “If we can share malicious source code in real time — machine to machine, zeroes and ones in light speed — we might be able to put a dent in this.”