“Government requests for online data are like the dark matter of the Internet,” said Eva Galperin, a global policy analyst at the Electronic Frontier Foundation in San Francisco, which has campaigned for greater disclosure.
She said that even with Microsoft’s disclosures, fewer than 10 companies publish the extent of their cooperation with law enforcement agencies.
“Only a few companies report this, but they are only a very small percent of the online universe,” Ms. Galperin said. “So any one company that joins the disclosure effort is good news. The faster this becomes a standard for all Web businesses, the better.”