Regardless of being described as probably “the deepest reorg that has ever taken place in a high 100 cryptocurrency,” analysts are but to substantiate that the incident comprised a coordinated assault.
Coinmetrics COO Antoine Le Calvez was one of many first to note the reorg, sharing a screenshot on Twitter exhibiting that no less than 560,000 blocks had disappeared on February 15.
— Antoine Le Calvez (@khannib) February 15, 2021
Le Calvez prompt the reorg might have been brought on by a double-spend, during which quite a lot of XVG tokens are used concurrently for 2 separate transactions. Nonetheless, because of the magnitude of the incident, Calvez admitted it’ll take a while for builders to comb by means of the info to determine the exactsource of the reorg.
On account of this roll-back, any person who acquired or bought XVG tokens since July 2020 might have misplaced their whole steadiness, with Deribit Insights’ researcher “Hasu” tweeting that “1000’s of balances have merely evaporated.” One Verge investor tweeted that their pockets steadiness is now empty after the assault.
Regardless of the size of the potential assault, Hasu believes will probably be “fairly straightforward to counter,” advancing that “nodes will reject the attacker’s chain and restore the earlier one.” Hasu said the incident highlights the vulnerability of blockchains supported by GPU mining.
This isn’t the primary time a reorg has been prompt to fend off would-be attackers, with Hasu referencing again to 2019 when Vertcoin succumbed to a 51% assault. The identical 12 months, after main alternate Binance was hacked for greater than $40 million, founder and CEO Changpeng Zhao floated the thought of conducting a Bitcoin reorg to recuperate the funds, nevertheless, the thought was rapidly determined towards.
An unconfirmed screenshot shared by Twitter person @etn_electroneum confirmed XVG advisor AlexanDre stating the supply is linked to some nodes who needed to create a fork. He additionally added that there was not a 51% assault.