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InfoResearchPeer-reviewed

ChargerWhisper: Acoustic Side-Channel Attack Exploiting Fast Charger

Source
IEEE Xplore (Security & AI Journals)(opens in a new tab)
Published
Record updated

Summary

ChargerWhisper is a side-channel attack that uses inaudible high-frequency sounds from a fast charger's inductors, capacitors and transformers to infer private information on a charging phone. The sounds correlate with the charger's output power, which shifts with the user's activity. The researchers demonstrated a website fingerprinting attack and a PIN inference attack on off-the-shelf devices, reporting robust performance across diverse usage settings.