Which phase involves exploiting a vulnerability in software, humans, or hardware?

• A. Reconnaissance
• B. Delivery
• C. Exploitation
• D. Installation

Answer: (C)

Exploitation is the phase where the attacker triggers a vulnerability to gain access, escalate privileges, or execute code. This step is all about taking advantage of a flaw that was identified earlier (in software, in human weaknesses through social engineering, or in hardware/firmware) to move from unauthorized access to active control of the target system. The goal is to get code to run, to break out of limited access, or to enable persistence and further actions.

For example, a software flaw like a buffer overflow can be exploited to run arbitrary code on a victim’s system. A social engineering effort may exploit human weaknesses to obtain credentials or sensitive information. A hardware/firmware vulnerability can be leveraged to bypass protections and gain control at the device level.

Other phases involve different activities: reconnaissance is about gathering information on targets, delivery is about presenting the exploit to the target, and installation focuses on establishing foothold or persistence after exploitation.