The primary goal of a threat actor in a cyber attack is typically to cause damage, disruption, or gain some form of unauthorized advantage. They may aim to steal sensitive data, encrypt files for ransom, disrupt services, or compromise the integrity of a system. Understanding the motivations of threat actors helps in building effective defense strategies.

Common Vulnerabilities and Exposures (CVEs) provide a standardized approach for vulnerability management across different software systems, hardware devices, or networks. Security professionals can use CVEs to track and manage vulnerabilities more effectively, making it easier to identify and prioritize patching needs. CVEs help in maintaining a consistent and systematic process for addressing vulnerabilities across the organization.

Cloud computing refers to the delivery of on-demand computing resources, including servers, storage, databases, networking, software, and analytics, over the internet. It provides organizations with the ability to access and use shared pools of configurable computing resources quickly and easily, without the need for extensive upfront infrastructure investments. Cloud computing offers scalability, cost-efficiency, and flexibility, making it an essential component of modern IT environments.

Hardening refers to the process of securing a system by reducing its vulnerability to potential threats and attacks. It involves implementing security best practices, such as disabling unnecessary services, applying patches and updates, configuring access controls, strengthening passwords, and employing additional security measures like firewalls or intrusion detection systems. Hardening helps ensure systems are less susceptible to exploitation.

Option 1: Incorrect. Implementing strong physical security measures is important, but it is not the key principle of securing data in the cloud.
Option 2: Correct. Encrypting data at rest and in transit is a key principle of securing data in the cloud. This ensures that even if the data is compromised, it cannot be accessed without the decryption key.
Option 3: Incorrect. Using complex passwords is a good security practice, but it is not the key principle of securing data in the cloud.
Option 4: Incorrect. Limiting access to the cloud from specific IP addresses is a security measure, but it is not the key principle of securing data in the cloud.