Red signifies various emotions and actions. If we need to depict action, attack, blood, terror we use the color red. Thus, when we talk about red team training, we intend to develop a team that attacks on the IT system of its opponent.
Red Team training is the training of employees working as a team that works on developing and creating various real-life scenarios that attack and devastate the entire IT security and cyber system. The technique is also known as destructive technique where employees are encouraged to attack their own security systems just to check whether they can stand the attack from an outsider or not.