What measure is NOT effective for protecting cloud operations against internal threats?

Redundant ISPs are primarily aimed at ensuring network reliability and availability rather than specifically protecting against internal threats. While having multiple Internet Service Providers can help maintain connectivity in the event of a failure, it does not directly address vulnerabilities associated with insider threats. Internal threats often stem from individuals who have authorized access to sensitive data and systems, making data protection measures like masking and obfuscation, as well as active surveillance, much more relevant and effective.

Masking and obfuscation of data is designed to protect sensitive information by transforming it such that unauthorized individuals cannot easily interpret it, which directly mitigates risks from insiders accessing critical data. Active electronic and physical surveillance focus on monitoring user actions and detecting suspicious activity, thereby helping in identifying and managing internal threats effectively.

Ultimately, the essence of the correct response lies in the understanding that while redundant ISPs are important for network performance and reliability, they do not provide specific protection mechanisms required to defend against the risks posed by internal individuals with access to the cloud environment.