Blacklist - Used to refer to a list of banned IP addresses, applications or users.

Whitelist - The exact opposite of a blacklist

Cat fishing - The process of creating a fake online profile in order to trick people into believing they are someone else for financial gain.
Authentication - The process of proving an individual is who they claim to be.

Data Mining - The activity of analyzing and/or searching through data in order to find items of relevance, significance or value

Threat - This generally refers to anything that has the potential to cause our data, systems and networks harm.

Exploit - A clearly defined way to breach the security of a system.

Vulnerabilities - These are weaknesses within a system or network that can be exploited to cause us harm.

Risk - This refers to the likelihood of something bad happening. A risk requires both a threat and a vulnerability to exist.

Zero Day - This is used to describe a threat that is unknown to security specialists and has not been addressed.

Hack Value - This describes a target that may attract an above average level of attention from an attacker.

Non-Repudiation - This is the concept that once an action is carried out by a party it cannot be denied by that same party.

Logic Bomb - A malicious code that is only triggered when a set of conditions are met.

Obfuscation - A term used to describe the tactic of making code unclear so that humans or programs like an antivirus cannot understand it.

Honey Pot - A decoy or trap for hackers

Spoof - The act of falsifying the identity of the source of a communication or interaction

cookie - is a text file which is placed on your computer whenever you visit a website. This cookie allows the website to keep track of your visit details and store your preferences. The main objective here is to increase the speed with which you visit that same website again

Internet Protocols - set of rules or method that determine how data is sent from one computer to another on the Internet for examples: HTTPS , HTTP , FTP , SFTP , TCP , UDP , SSH , ... etc