Ghost Intrusion
Source
Core Rulebook pg. 71
Whenever you use the Computers skill to access a system and you fail to overcome its defenses by 4 or less, you do not trigger any countermeasures and there is no log of your attempt. If you fail by 5 or more, any countermeasures take effect against you as normal.
Dragonscript
ID
23e3d24922b83b57fbabb98d