Because cybernetics leave living beings just as vulnerable to EM and Phased Energy Weapons as mechanical systems are, cybernetic components can be upgraded to include in-line surge suppressors that reduce the effects of these weapons somewhat.
A subject with Phase-shielded cybernetic components gains DR 15 against EM and Phased Nadion weapons
and a +4 equipment bonus on Fortitude saves against the stun effect of Phaser weapons.
Phase shielding increases the cost of a cybernetic component by 25% and increases the install DC by +5.
Phase shielding only works if every cybernetic component is Phase shielded.
If a character has any cybernetic component that is not shielded, the shielding of other components has no effect.