Microsoft, Google and Facebook have asked the US government to allow them to disclose security requests they receive for providing user data.
It comes hot on the heels of reports that US authorities accessed the servers of major tech businesses.
Google called the claims "untrue", but added that nondisclosure rules fuel speculation.
The surveillance programme 'Prism' was revealed following leaks by ex-CIA employee Edward Snowden.
David Drummond, chief legal officer of Google, wrote to the US Attorney General asking for permission to publish "aggregate numbers of national security requests, including Foreign Intelligence Surveillance Act (Fisa) disclosures".
He said: "Google's numbers would clearly show that our compliance with these requests falls far short of the claims being made. Google has nothing to hide."
Microsoft stated that better transparency "would help the community understand and debate these important issues", while Facebook wants to offer "a complete picture of the government requests".
Return to internet news headlines
View Internet News Archive