"We want consumers to have confidence in the industry and that means a commitment to protect consumer privacy. Industry has to fill in the gaps or policy makers will do it, possibly in an overly prescriptive way," said Walshe.
(Jennifer Baker in Brussels contributed to this report.)
Martyn Williams covers mobile telecoms, Silicon Valley and general technology breaking news for The IDG News Service. Follow Martyn on Twitter at @martyn_williams. Martyn's e-mail address is email@example.com