The Home Secretary has said spying accusations undermine the ability of the Prevent programme.
The Government anti-terror programme has the aim of stopping people from being drawn or led into committing terrorist acts.
Despite this, there is on-going discussion as to whether it should be rolled out across certain areas and made compulsory.
In The Sun on Thursday, Amber Rudd claimed there were some actively seeking to undermine the program by saying it spied on people.
She told the paper the program was here to stay, and stopping people from committing terrorist offences should be an aim shared by all.
The anti-terror program has been credited with helping to stopping more than 150 attempted voyages by would-be militants to Syria and Iraq.