Litecoin Network Hit by Denial-of-Service Attack, Successfully Reverses 13 Blocks
A series of events unfolded over the weekend as a vulnerability in Litecoin's Mimblewimble Extension Block protocol was exploited, allowing for a denial-of-service attack against major mining pools and enabling invalid transactions to be processed. The bug, which was privately patched between March 19 and 26, was leveraged to carry out the attack, but the network's longest valid chain ultimately …
April 26, 2026, 8:34 a.m.