The Shared Vault Problem: Deconstructing Bifrost's Reward Weight Exploit"
"article":"August 8, 11:47 UTC. Three liquidity pools. One shared Keeper Vault. $720,000 extracted.\n\nThe attack on Bifrost, Polkadot's liquid staking protocol, did not touch the relay chain. It did not break the vDOT staking contract. The exploit lived in the reward weight mechanism — the parameter layer that determines how much yield each depositor receives. An attacker manipulated that layer and reached principal, not rewards.\n\nCheck the calldata, not