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USB storage bridges may expose ATA commands via SCSI/ATA Translation (SAT), but ATA Security behavior varies by bridge and firmware. Without an explicit vendor guarantee, reported capabilities do not confirm end-to-end command support. After zeroing a 4TB WD My Passport USB HDD via dd, ATA Security support was queried: hdparm -I /dev/sdX /dev/sdX: ATA device, with non-removable media Model Number: WDC WD40NMZW-11GX6S1 ... Security: Master password revision code = 48059 supported enabled not locked not frozen not expired: security count supported: enhanced erase Security level high 768min for SECURITY ERASE UNIT. 2min for ENHANCED SECURITY ERASE UNIT. ... Setting a password appeared to succeed: hdparm --user-master u --security-set-pass p /dev/sdX but issuing SECURITY ERASE failed: hdparm --user-master u --security-erase p /dev/sdX security_password: "p" /dev/sdX: Issuing SECURITY_ERASE command, password="p", user=user SG_IO: bad/missing sense data, sb[]: 70 00 05 00 00 00 00 0a 00 00…

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