olemus
meetmed salajälgimise tõrjeks,
näiteks privaatsuse kaitseks või
majandusspionaaži takistamiseks

Wiktionary:
the art of evading surveillance

ülevaateid
https://en.wikipedia.org/wiki/Countersurveillance

https://cdn.fedweb.org/137/268/Countersurveillance%2520Guidelines.pdf

http://protectioninternational.org/wp-content/uploads/2015/10/Online-NO2_SURVEILLANCE-AND-COUNTER-SURVEILLANCE-FOR-HUMAN-RIGHTS-DEFENDERS-AND-THEIR-ORGANISATION-310315.pdf

http://pe2bz.philpem.me.uk/Comm/-%20Transmitters/-%20Bugs/-%20Info/warningsigns.html

http://www.tscm.com/warningsigns.html

http://www.brickhousesecurity.com/category/counter+surveillance.do

vt ka
- tehniline jälgimistõrje