BAC-L3-SEC-110Blockchain security
Cross-chain bridge security
Bridges account for most of the sector's historical losses. Understanding why structurally, not accidentally.
- Level
- L3 — Infrastructure engineer
- Duration
- 4 h
- Track
- Blockchain security
- Maintainer
- Blockchain Security Engineer
Learning objectives
- 01Classify a bridge by its trust assumption
- 02Map documented incidents onto assumption classes
- 03Assess a bridge before entrusting value to it
Guided lab
Analyse three documented bridge incidents and identify which assumption failed in each.
Independent lab
Produce a bridge assessment grid and apply it to a production bridge.
Security angle
A bridge's security is that of its weakest link, often a multisignature key held by very few people.
Assessment
Applied assessment grid, peer-reviewed.