Spider-Man battles Doctor Strange in a cross-chain bridge exploit, revealing vulnerabilities like signature forgery and replay attacks. Learn how single-validator systems and weak message hashing enable attackers to mint unbacked tokens, and secure bridges with EIP-712, multi-sig, and Chainlink CCIP.

Quicksilver exploits Ethereum’s mempool to launch a Sandwich Attack on Iron Man’s StarkSwap trade. Learn how MEV bots profit with front-run + back-run, and how commit–reveal, batch auctions, and private relays defend against it.

Black Widow uses her wits to exploit a series of access control flaws, from public admin assignment to missing permission checks, to drain the Red Room’s vault. Learn how a single contract can be a treasure trove of vulnerabilities and how to fix them.

Doctor Strange guards the Mirror Portal, but improper input validation lets villains sneak through exits. Inspired by a $41M real-world validator exploit, this case study shows how missing require checks drain treasuries - and how to fix them.

Ant-Man borrows massive funds from the Quantum Realm, manipulates prices on a naive PymDEX, and walks away rich. Learn how flash loans + naive on-chain price oracles lead to instant drains, and how to fix them.

Thor gets stranded when Loki clogs the Bifrost bridge. Learn how DoS in Solidity works, how attackers block withdrawals, and how patterns like pull-payments and gas-optimized loops prevent disaster.