Litecoin Recovers from Denial-of-Service Attack by Rewriting 13 Blocks
Late Friday and Saturday, a series of events unfolded as a denial-of-service attack hit Litecoin, leveraging a vulnerability in its Mimblewimble Extension Block protocol to temporarily rewrite 13 blocks and reverse approximately 32 minutes of network activity. The attack, facilitated by a bug, allowed invalid transactions to bypass nodes that had not been updated, prior to the network's longest v…
April 26, 2026, 8:34 a.m.