What is the recommended setting for Next Gen AV to enable quarantine on files?

The recommended setting for Next Gen AV to enable quarantine on files is to "Quarantine on Write." This setting actively places files that are deemed suspicious or malicious into quarantine at the time they are created or modified on the endpoint. By doing so, it prevents potentially harmful files from executing or affecting the system further, thereby allowing security teams to analyze the quarantined items without risking the integrity of the operating system or being exposed to malware.

Quarantining on write is particularly effective because it preemptively mitigates threats as they arise, rather than dealing with them after the fact. This proactive approach means that potential threats are contained immediately, reducing the window of exposure and potential damage.

The other options, such as "Detect Only" or "Allow," do not actively quarantine suspicious files. "Detect Only" would notify administrators of threats without taking action, leaving files to potentially cause harm. "Allow" would permit all files to be executed regardless of their risk assessment, which exposes the environment to unnecessary risk. "Block, Hide Detection" would stop execution but may not effectively isolate the threat for further analysis, which is crucial for understanding and mitigating threats in a comprehensive security strategy.