olemus
ründeotstarbeline sihtmärgi kohta andmete kogumine
=
the technique used for gathering information about computer systems and the entities they belong to

näide
töötajate andmete võtt avalikult veebilehelt, manipuleerimise otstarbeks

ülevaateid
https://quadrant360.com/blog/what-exactly-is-footprinting-and-reconnaissance/

https://www.greycampus.com/opencampus/ethical-hacking/footprinting-methodology

https://en.wikipedia.org/wiki/Footprinting

http://amies-2015.international-symposium.org/proceedings_2015/Moghadampour_AmiEs_2015_Presentation.pdf

https://www.wisdomjobs.com/e-university/ethical-hacking-tutorial-1188/ethical-hacking-footprinting-17341.html

https://medium.com/infosec/all-you-need-to-know-about-footprinting-and-its-techniques-e42cc90c3245

https://ktflash.gitbooks.io/ceh_v9/content/22_footprinting_methodology.html