The Principle of Least Privilege

In cybersecurity, one rule stands above nearly all others. Engineers call it "the principle of least privilege," first formalized by Jerome Saltzer and Michael Schroeder in their landmark 1975 paper at MIT. The idea is elegant in its simplicity: every user, every program, every process should operate with only the minimum level of access necessary to complete its task. A payroll clerk does not need the CEO's passwords. A print driver does not need permission to rewrite the operating system.

The most secure networks in the world — protecting hospitals, banks, power grids — are built on this discipline. Not maximum authority, but appropriate authority. Not "how much power can I accumulate?" but "what do I genuinely need to serve my purpose?"

Paul describes Jesus operating by this very principle. Though He existed in the form of God, He "did not consider equality with God something to be grasped, but emptied Himself, taking the form of a servant" (Philippians 2:6-7). The One with unlimited access to all power chose the minimum privilege necessary to accomplish His mission — a manger, a carpenter's shop, a cross.

Humility is not thinking less of yourself. It is operating with exactly the authority you need and no more. It is the willingness to set aside privileges you legitimately hold for the sake of the work the Almighty has given you. The most secure soul, like the most secure system, is not the one with the most power — it is the one that handles power with the most discipline.