The fact the Security Intelligence Service even used CCTV was previously a secret.
The tech giant is also working on an Android app to notify non-iOS users.
The security industry says security guards are increasingly using smartphones to photograph incidents while on patrol.
Private security company Cityguard has admitted its staff photograph children.
The tech is a "deep and non-democratic intrusion" into people's private lives", says the EDPS.
The company will also reject Apps that use known device fingerprinting techniques.
The Government department has apologised to those affected.
It's accused of "secret monitoring of private browsing".
Google says it will not build or use alternate tools to track web browsing traffic.