Watt2Bit

Ji, Pan & Xu's own name (arXiv:2607.05993, accepted CHES 2026) for the "reverse" direction of their Bit2Watt cyber-physical vulnerability: instead of an attacker manipulating GPU scheduling to destabilize the power grid, Watt2Bit is the power/EMI side of that same attack read back out — a denial-of-service risk (thermal/harmonic stress tripping protection relays) and, per a dedicated lab-scale experiment, a covert data-exfiltration channel (FSK-encoded bits recovered from EMI with over 99% accuracy on a 50-bit test). First named in the vault 2026-07-09 as an unread "further lead" off the original Bit2Watt capture; read in full 2026-09-08. Its own paper hedges the exfiltration half of the claim inconsistently across sections (see question-corroborate-bit2watt-single-source-cap).

References

• question-watt2bit-emi-exfiltration-mechanism
• question-corroborate-bit2watt-single-source-cap
• claim-bit2watt-gpu-scheduling-destabilizes-power-grid