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Power and Electromagnetic Side Channels: Data Extraction Across Physical Gaps
1. Beyond Software Boundaries: The Invisible Leakage When people talk about cybersecurity, they usually imagine code vulnerabilities, not physical ones. Yet some of the most insidious data leaks come not from compromised networks but from the subtle energy a device emits as it operates. Power consumption fluctuations and electromagnetic (EM) radiation — normally just…
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Side-Channel Attacks on Mobile and IoT what they are, why they matter, and how to defend against them
Side-channel attacks are the ugly truth most developers don’t want to face: they extract secrets without breaking crypto math or getting privileged access — by observing physical or microarchitectural side effects (timing, power consumption, EM emissions, cache behavior, sensors, etc.). On constrained devices like phones and IoT nodes this problem is worse because hardware…