Litecoin rewrites three hours of history to undo its first major privacy-layer exploit
The Block
Litecoin underwent a chain reorganization to negate an exploit in its MWEB privacy layer that facilitated unauthorized transactions and double-spending.Summary
Litecoin successfully executed a deep chain reorganization to reverse an attack on its MimbleWimble Extension Block (MWEB) privacy layer. Attackers exploited a zero-day vulnerability, allowing them to create invalid MWEB peg-out transactions and perform double-spend attacks on cross-chain protocols. While the Litecoin Foundation confirmed the bug is patched and the malicious history erased, some trading venues reported significant financial losses.
(Source：The Block)