Improved Attack Tree Generation

The generation of the attack trees using ChatGPT has been improved. The change made was that the root attacks are identified as "motives" instead of "objectives", which are semantically different in the industry as a motive describes why an attacker wants to attack the system and the objective describes how an attacker is going to accomplish their motive. Thus, the generated attack trees now look more in line with the root attack describing a possible motive that an attacker wants to achieve on the system, i.e. 'Sell User Data', and the child nodes describing all of the different ways/steps that an attacker can take to achieve the motive.