As a cybersecurity analyst, you are tasked with performing active reconnaissance on a potential client's network to identify vulnerabilities. You have already completed the passive reconnaissance phase.

Which of the following steps would you take next, and why?

Start by launching a denial$-$of$-$service $($DoS$)$ attack to test the network's resilience.

Use social engineering techniques to trick employees into revealing sensitive information.

Begin with port scanning to identify open ports and the services running on them.

Immediately report to the client that their network is secure based on the passive reconnaissance results.