BAC-L3-SEC-108Blockchain security
Consensus attacks
What it actually takes to attack a consensus — in stake, hardware or network position — and at what price.
- Level
- L3 — Infrastructure engineer
- Duration
- 4 h
- Track
- Blockchain security
- Maintainer
- Blockchain Security Engineer
Learning objectives
- 01Classify attacks by the resource they require
- 02Cost out an attack on a given network
- 03Identify the defences that actually work
Guided lab
Reproduce a majority attack on an isolated lab network and observe the reorganisation.
Independent lab
Cost out attacks on three public networks and compare their security budgets.
Security angle
Exercise strictly confined to an isolated BAC network; no action is taken against any third-party network.
Assessment
Attack-cost analysis, assessed on its costing method.