A threat actor collects information from web servers of an organization and searches for employee contact information. The information collected is further used to search personal information on the Internet. To which attack phase do these activities belong according to the Cyber Kill Chain model?

When a threat actor prepares a weapon for an attack, the threat actor chooses an automated tool (weaponizer) that can be deployed through discovered vulnerabilities. Malware that will carry desired attacks is then built into the tool as the payload. The weapon (tool plus malware payload) will be delivered to the target system. By using a zero-day weaponizer, the threat actor hopes that the weapon will not be detected because it is unknown to security professionals and detection methods are not yet developed.