Google is facing increased pressure over its privacy policies, as British regulators ordered the tech giant Friday to give users more insight into how the information it collects on them is used.

European regulators have become more critical of Google's business practices in the past year, including French and Spanish authorities who say Google's policies do not comply with their data protection rules.

Privacy advocates say that questions about how U.S. firms protect European data will only become more pointed in the wake of revelations about a National Security Agency surveillance program, PRISM, that targets foreign data on the servers of U.S. companies.