What is a security benefit of fog computing in IoT environments?

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Fog computing brings processing and decision-making closer to the IoT devices, at the edge of the network. The security benefit is that IoT data can be analyzed, filtered, and even anonymized right near where it’s generated, before anything unnecessary or sensitive is sent farther away. This reduces how much data travels over networks, lowering exposure to interception or tampering, and enables faster, local security controls and anomaly detection. In short, acting on data closer to the source limits data exposure and tightens security at the edge.

The other options aren’t the unique security advantage fog provides. Encrypting all data or scrambling signals is important but not specific to fog, and fog isn’t defined by automatically creating unclear connections or eliminating remote management—those aren’t security benefits and can be detrimental.