Use Wireshark to keep your network secure by defending against the most common form of infiltration attempts. Analyzing the packets with security perspective will give you a new insight into how to deal with malicious users.

Activities such as port scanning, footprinting, and various active information-gathering attempts are the basis of attacking methodologies that can be taken advantage of to bypass your security infrastructure.

Guessing passwords for a legitimate service is called a brute force attack. If the same form of attack is combined with dictionaries, which consist of millions of passwords, the chances to break in get higher. Through Wireshark, you can view such attempts made against a service in your network.

Using a legitimate looking piece of software, a malicious user can gain entry into your network. These days, the most common form through which malwares are being distributed is emails. Another attack form, such as phishing, when combined with malwares, becomes seriously dangerous.

Wireshark can help you in analyzing malware behaviors, and using the behavior analyzed, you would be able to create the necessary signatures for your IDS/IPS firewalls in place.

Capture the flag events are commonly conducted at security conferences. Multiple educational exercises are provided to the participants to experience real-world scenarios. The real CTF is where a TEAM A tries to penetrate into TEAM B's network and vice versa at the same time. Both the teams are responsible for securing against the malicious attacks sent in. There are multiple categories in CTF events, such as reverse engineering, protocol analysis, programming, cryptanalysis, and so on. Mastering Wireshark can ease your way while dealing with protocol analysis related CTFs.

Observing things scattered around with a security professional's perspective will let you see things differently. From a person inside the corporate infrastructure, things might feel OK. However, from outside, you might be very vulnerable. Security professionals are like immunity to the IT industry, and analyzing the packets using Wireshark is one of their weapons in the arsenal.