What should the DEFR do before disconnecting a networked device from the network?

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BlackTom AI · Accepted Answer

The question asks what the DEFR should do before disconnecting a networked device from the network, and the provided content lists a single option to consider.
Option a: 'Conduct logical acquisition of data related to the logical network connection.' This choice emphasizes collecting data that can be preserved and analyzed later, focusing on the logical aspects of the network connection rather than hardware state alone. Such a step aligns with forensic and incident-response best practices that aim to preserve evidentiary data before any disconnection or alteration occurs, ensuring evidence of how the device interacted with the network is captured.
Explaining why this could be appropriate: Performing a logical acquisition can help capture artifacts like connection logs, session metadata, routing information, and associated configurations without powering down or physically tampering with the device. This reduces the risk of losing ephemeral information that might be critical for later analysis, and it creates a baseline snapshot of the device’s network state.
Now, considering what might be missing or potential caveats: The sole focus on logical data acquisition may overlook volatile (RAM) or memory-resident data, running processes, open network connections, and in-memory encryption keys that could be important during a full forensic collection. In many procedures, investigators also perform memory captures, snapshot the device’s current state, and secure other forms of data (disk images, log files, configuration files) before disconnection.
Additionally, there could be protocol-specific or organization-specific steps, such as documenting the physical state of the device, identifying all connected interfaces, capturing power state details, and verifying chain-of-custody requirements. Since the option provided centers on logical data, it may be one essential piece but not necessarily the entire preparatory action set.
In summary, the option highlights a critical activity—acquiring data related to the logical network connection before disconnection—while acknowledging that a comprehensive pre-disconnection procedure typically includes multiple concurrent steps (memory capture, physical state documentation, and broader data preservation) to ensure a complete evidentiary picture.
If there were additional options, we would evaluate them similarly by weighing how each action contributes to preserving evidence, minimizing data alteration, and enabling effective subsequent analysis, while noting any potential risks or redundancies.

计算机犯罪与数字证据（202504-L州）

What should the DEFR do before disconnecting a networked device from the network?

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