What does LinEn contain to protect the target media during acquisition?

The correct choice emphasizes the importance of using a write blocker in the context of digital forensics, especially during the acquisition process. A write blocker is a specific hardware or software tool designed to prevent any modifications to the target media while data is being acquired. This is crucial because maintaining the integrity of the original data is a fundamental principle in forensic investigations. By ensuring that the acquisition process does not alter the original evidence, a write blocker helps maintain its admissibility in a court of law.

In digital forensics, the goal is to create a bit-for-bit copy of the data without affecting the original evidence. The use of a write blocker achieves this by allowing read access while blocking any write commands to the media. This simultaneous protection ensures that the evidence remains pristine, which is vital for a reliable forensic process.

In contrast, other options like data recovery tools, file encryption, and anti-virus software do not specifically address the need to protect the target media during the acquisition process. Each of these tools has its own purposes, such as restoring lost data, securing information, or scanning for malware, but they do not prevent modifications to the original data like a write blocker does.