BREACH GRID

Case IRN-2247 // Active Incident

Operation Dark Ledger

A threat actor is inside a financial network right now. Your job: reconstruct every stage of the attack before the data walks out the door. The attacker is already moving. So are you.

Fill the grid before attacker progress reaches 100%. Wrong guesses advance the attacker.

Select Clearance Level

How to play

Each number 1–9 represents a step in a simulated intrusion lifecycle. Fill the grid so every row, column, and 3×3 box contains each step exactly once.

Click a cell, then click a number or press a key to fill it. Arrow keys navigate. N toggles note mode. Delete/Backspace erases.

Wrong answers turn red. Fix them fast. Every wrong guess gives the attacker more ground. If attacker progress hits 100%, the breach is complete.

Empty cells — The squares you need to solve. Each one maps to an intrusion lifecycle step.

Attacker window — Your margin before the breach completes. Harder levels give you less room to screw up.

Wrong guess — An incorrect number placement. Each wrong guess advances attacker progress.

Attacker progress — The breach meter. Keep it below 100% or the attacker wins.