🌉 Bridge Attack Scenario
Learn from billion-dollar bridge hacks
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0 / 5 completed🚨 Bridge Attacks: The $2B+ Problem
⚠️ What are Bridge Attacks?
Bridge attacks are exploits targeting cross-chain bridges – protocols that enable asset transfers between different blockchains. Since 2021, bridge hacks have resulted in over $2 billion in stolen funds, making them the single largest attack vector in crypto.
💡 Why Bridges are Targeted: Bridges act as honeypots, holding massive amounts of locked assets. A single vulnerability can drain hundreds of millions in minutes, and the complexity of cross-chain communication creates multiple attack surfaces.
$2B+ Stolen
Total funds lost to bridge attacks since 2021
#1 Attack Vector
Largest source of DeFi exploits by dollar value
Minutes to Drain
Once exploited, funds vanish almost instantly
🎮 Bridge Attack Simulation
Step through a typical bridge attack to understand the four stages of exploitation. Navigate at your own pace to see how quickly a bridge can be compromised.
Bridge Operating
Step 1/4Cross-chain bridge facilitates $500M in transfers
🎯 Why Bridges Get Hacked
Honeypot Effect
Bridges hold billions in locked assets, creating an irresistible target. A single exploit can yield hundreds of millions.
Complexity
Cross-chain communication involves multiple systems: validators, relayers, smart contracts, and oracles – each is a potential attack surface.
Centralization Risks
Many bridges rely on small validator sets or multisig wallets. Compromising just a few keys can unlock all funds.
Novel Technology
Bridge technology is relatively new and rapidly evolving. Smart contract bugs and protocol design flaws are common.
🚨 Major Attacks (Top 5)
- •Ronin Bridge: $625M stolen via compromised validator keys
- •Poly Network: $611M exploited through contract bug
- •BNB Bridge: $586M from proof verification flaw
- •Wormhole: $325M due to signature verification bug
- •Nomad Bridge: $190M from initialization error
🛡️ What You'll Learn
- •Common attack vectors and exploit techniques
- •How major bridge hacks actually happened
- •Technical vulnerabilities in bridge designs
- •Security best practices and prevention methods
- •How to evaluate bridge safety before using