3 ms·

From https://blog.3mdeb.com/2024/2024-12-13-ram-data-decay-research/ https://blog.3mdeb.com/2024/2024-12-13-ram-data-decay-resear... : > The main goal is to de

From https://blog.3mdeb.com/2024/2024-12-13-ram-data-decay-research/ https://blog.3mdeb.com/2024/2024-12-13-ram-data-decay-resear... : > The main goal is to determine the time required after powering off the platform for all the data to be irrecoverably lost from RAM. Cold boot attack: https://en.wikipedia.org/wiki/Cold_boot_attack https://en.wikipedia.org/wiki/Cold_boot_attack Data remnance: https://en.wikipedia.org/wiki/Data_remanence https://en.wikipedia.org/wiki/Data_remanence Ironically, quantum computers have the opposite problem; coherence times for QC qubits are still less than a second: there is not yet a way to store qubits for even one second. (2024: 291±6µs, 2022: 20µs) "Cryogenically frozen RAM bypasses all disk encryption methods" (2008) https://www.zdnet.com/article/cryogenically-frozen-ram-bypasses-all-disk-encryption-methods/ https://www.zdnet.com/article/cryogenically-frozen-ram-bypas... And that's part of why secure enclaves and TPM.

westurner 2y ago
From https://news.ycombinator.com/item?id=37099515 https://news.ycombinator.com/item?id=37099515 : > If quantum information is never destroyed – and classical information is quantum information without the complex term i – perhaps our [RAM] states are already preserved in the universe; like reflections in water droplets in the quantum foam According to the "Air gap malware" Wikipedia article's description of GSMem, the x86 RAM bus can be used as a low power 3G antenna. And, HDMI is an antenna, and, Ungrounded computers leak emanations to the ungrounded microphone port on the soundcard. Air gap malware: https://en.wikipedia.org/wiki/Air-gap_malware https://en.wikipedia.org/wiki/Air-gap_malware Stochastic forensics: https://en.wikipedia.org/wiki/Stochastic_forensics https://en.wikipedia.org/wiki/Stochastic_forensics
- myself248 2y ago
  Back in the day, we called that https://en.wikipedia.org/wiki/Van_Eck_phreaking https://en.wikipedia.org/wiki/Van_Eck_phreaking

westurner 2y ago

From https://news.ycombinator.com/item?id=37099515 https://news.ycombinator.com/item?id=37099515 : > If quantum information is never destroyed – and classical information is quantum information without the complex term i – perhaps our [RAM] states are already preserved in the universe; like reflections in water droplets in the quantum foam According to the "Air gap malware" Wikipedia article's description of GSMem, the x86 RAM bus can be used as a low power 3G antenna. And, HDMI is an antenna, and, Ungrounded computers leak emanations to the ungrounded microphone port on the soundcard. Air gap malware: https://en.wikipedia.org/wiki/Air-gap_malware https://en.wikipedia.org/wiki/Air-gap_malware Stochastic forensics: https://en.wikipedia.org/wiki/Stochastic_forensics https://en.wikipedia.org/wiki/Stochastic_forensics

myself248 2y ago
Back in the day, we called that https://en.wikipedia.org/wiki/Van_Eck_phreaking https://en.wikipedia.org/wiki/Van_Eck_phreaking