Access to keyboard on booting system is not physical access. System may have protected GRUB and firmware. Attacker may got priveleged shell without physical access and damage data, firmware, or add keyloger into /boot.
Access to keyboard on booting system is not physical access. System may have protected GRUB and firmware. Attacker may got priveleged shell without physical access and damage data, firmware, or add keyloger into /boot.