23.10.2021

Cryptocurrency Verge Responds To Hacking Claims By Launching ‘Accidental Hard Fork’

According to various press and social media sources, including Verge developer known as Sunerok, a bug allowed manipulation of block mining timestamps. This created the potential for illegitimate coins to appear from nowhere.

Anonymity-focused cryptocurrency Verge (XVG) lost 25% of its value April 4 as news surfaced of an apparent hack which developers ‘resolved’ by accidentally initiating a hard fork.

“There’s currently a >51% attack going on on XVG which exploits a bug in retargeting in the XVG code,” Suprnova mining pool’s OCminer reported on Bitcointalk.

“Due to several bugs in the XVG code, you can exploit this feature by mining blocks with a spoofed timestamp. When you submit a mined block (as a malicious miner or pool) you simply set a false timestamp to this block one hour ago and XVG will then “think” the last block mined on that algo was one hour ago.”

The debacle comes just three weeks after John McAfee-endorsed Verge lost control of its Twitter account to hackers, with funds reportedly not being at risk.

Following the fresh bug reports, however, Sunerok appeared to adopt a laissez faire attitude to fixing them, pushing through an accidental hard fork.

“You guys are aware that the ‘fix’ you pushed actually IS a hardfork? So your blockchain snapshot is not valid anymore, the wallet’s won’t sync up from scratch anymore and the current chain is simply not usable anymore with that new ‘fix’?” OCminer continued.

Analysis by Suprnova suggested the hack stopped April 5. “I skimmed the logs and saw the attacker started the new attack at around block 2014060 and stopped just now at block 2026196,” OCminer wrote in a further post.

Verge’s last official Twitter update was published around 19 hours ago, claiming funds were only exploitable for three hours:

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