次の脅威アクターのうち、有名な音楽グループの Web サイトを改ざんする可能性が高いのは誰でしょうか?
正解:A
Detailed Explanation:An unskilled attacker, often referred to as a script kiddie, is likely to engage in website defacement. This type of attack typically requires minimal expertise and is often conducted for notoriety. Reference: CompTIA Security+ SY0-701 Study Guide, Domain 2: Threats, Section: "Threat Actors and Motivations".