Dual control is a security principle requiring two authorized people or two independent approvals for a sensitive action or access event. It matters because some actions are too powerful to leave in the hands of one person without oversight.
What is Dual Control?
Dual control is common in key ceremonies, payment systems, privileged trust operations, and other environments where a single-person action would create too much risk. It helps reduce insider abuse, mistakes, and silent unilateral compromise.
What Dual Control Commonly Supports
Common uses include root-key operations, HSM administration, privileged access approval, key recovery, and regulated security processes.
Dual Control vs. Single-Person Control
Dual control requires separate approvals or actors. Single-person control allows one individual to complete the sensitive action alone.
Frequently Asked Questions
Why does dual control matter?
Because it reduces the chance that one compromised account or one malicious insider can act without detection or resistance.
Is dual control the same as split knowledge?
They are related but different. Dual control is about authorization or action approval, while split knowledge is about secret possession or awareness.
Related Cybersecurity Terms
