J. Scott Applewhite/Associated Press
The bill is not expected to make it through Congress this year and will be the subject of negotiations next year with the Republican-led House. But the Senate panel’s approval was a first step toward an overhaul of a 1986 law that governs e-mail access and that is widely seen as outdated.
Senator Patrick Leahy, the Vermont Democrat who is chairman of the committee, was an architect of the 1986 law and is leading the effort to remake it. He said at the meeting on Thursday that e-mails stored by third parties should receive the same protection as papers stored in a filing cabinet in an individual’s house.
“Like many Americans, I am concerned about the growing and unwelcome intrusions into our private lives in cyberspace,” Mr. Leahy said. “I also understand that we must update our digital privacy laws to keep pace with the rapid advances in technology.”
Mr. Leahy held a hearing about two years ago on whether and how to update the 1986 law, called the Electronic Communications Privacy Act. But the effort has moved slowly, in part because some law enforcement officials have opposed restricting an investigative tool now used increasingly.
Under the law, authorities need to obtain a search warrant from a judge — requiring them to meet the high standard of showing that there is probable cause to believe that a subject is engaged in wrongdoing — only when they want to read e-mails that have not yet been opened by their recipient and that are fewer than 180 days old.
But the law gives less protection to messages that a recipient has read and left in his or her account. In some cases, officials may obtain a court order for such material merely by presenting a judge with facts suggesting the messages are relevant to an investigation; in other cases, prosecutors can issue a subpoena demanding the materials without any court involvement.
Senator Leahy’s bill would generally require prosecutors to obtain a search warrant from a judge, under the stricter probable-cause standard, to compel a provider to turn over all categories of e-mails and other private documents.
The Center for Democracy and Technology, a nonprofit organization that advocates for electronic privacy rights, hailed the committee vote as “historic.”
In a statement, Gregory T. Nojeim, director of the center’s program on security and technology, said it “sets the stage for updating the law to reflect the reality of how people use technology in their daily lives. It keeps the government from turning cloud providers into a one-stop convenience store for government investigators and requires government investigators to do for online communications what they already do in the offline world: get a warrant before reading postal letters or searching our homes.“
Still, the ranking Republican on the committee, Senator Charles Grassley of Iowa, argued that the bill does not strike the proper balance between privacy and public safety. He expressed concerns that changing the standard of proof for obtaining e-mails would inhibit certain investigations, such as child pornography or child abduction cases.
Mr. Leahy argued that the bill does not alter criminal and antiterrorism laws related to search warrants, including exceptions in emergencies where time is of the essence. But he also said the bill was a starting point and he was open to further negotiations. The panel approved it by a voice vote.