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 targeted major mining pools, exploiting a vulnerability in Litecoin's Mimblewimble Extension Block protocol, allowing invalid transactions to temporarily bypass updated nodes before the network self-corrected. The Litecoin Core v0.21.5.4 release, which includes critical security updates, has been made available, w…
April 26, 2026, 8:34 a.m.