Exploit/Firewall/Hacker, Black Hat/Hacker, White Hat

1. Exploit

A means of attack on a computer system, either a series of commands, malicious software, or piece of infected data. Note that in this context, "exploit" is a noun, not a verb, as in "The hacker used a malware exploit to gain accesss to the credit card's server."

 

2. Firewall

Any technology, be it software or hardware, used to keep intruders out.

 

3. Hacker, Black Hat

Any hacker who attempts to gain unauthorized access to a system with the intent to cause mischief, damage, or theft. They can be motivated by greed, a political agenda, or simply boredom.

 

4. Hacker, White Hat

A hacker who is invited to test out computer systems and servers, looking for vulnerabilities, for the purposes of informing the host of where security needs to be buffed up. They are benign hackers, personifying the old axiom "It takes a thief to catch a thief". Sometimes called "ethical hackers."

 

 

 

 

* Reference

https://www.simplilearn.com/top-cybersecurity-terms-you-need-to-know-article