Which stage of the kill chain used by attackers focuses on the identification and selection of targets?

Reconnaisance

Reconnaisance is the first phase of the Kill Chain and includes research, identification and selection of targets. It is a preliminary survey and aims to obtain information by visual observation and other detection methods about activities and resources of a target.

micro/nanoscale topography surface exhibits many prominent properties and is extensively employed in biomedical device, microfluidic device and energy device fabrication. additionally, the clinical applications of biomaterials can be largely expanded with of nanostructured surfaces.