Upbit updates cold wallet policy in bid to thwart hackers

Hacking attempts on Upbit have reportedly surged from around 8,400 the second half of 2020 to 159,061 in the first half this year

article-image

Rafapress / Shutterstock, modified by Blockworks

share

Crypto exchange Upbit has started using more cold wallets after dealing with more hacking attempts since 2020.

Hackers reportedly attempted to breach crypto exchange Upbit about 160,000 times in the first half of 2023 alone.

This data, which reveals more than double the number of infringement attempts in the first half of 2021, was shared by Dunamu — the operator of Upbit — with South Korean lawmaker Rep. Park Seong-jung, a member of the National Assembly’s Information and Communications Technology (ICT) committee, Yonhap News reported on Monday.

Dunamu reported a substantial rise in hacking attempts on the exchange, surging from about 8,400 in the second half of 2020 to 159,061 in the first half this year. 

Upbit — among the top 20 crypto exchanges by spot trading volume — is believed to have incurred losses of 58 billion won (equivalent to $42.8 million) due to a hacking incident in 2019. 

Following this event, Upbit implemented preventive measures, such as distributing its operating hot wallets, effectively averting any subsequent cyber breaches, according to Yonhap.

In an effort to enhance security further, Dunamu announced its intent to increase Upbit’s cold wallet proportion to over 70% and adopt new procedures for operating hot wallets, designed to make them safer.

Hot wallets are generally considered more vulnerable to hacking and online threats because they are connected to the internet, whereas cold wallets are shield private keys from the risks associated with the online environment.

Rep. Park noted that the increasing frequency of hacking incidents targeting virtual asset exchanges, both domestically and internationally, is a growing concern.

He added that he feels the Ministry of Science and ICT has a vague role in overseeing these exchanges, and emphasized the importance of the Ministry taking proactive steps to address the issue. 

Specifically, he called for the Ministry to carry out simulated security tests and assess the information security landscape to better prepare for cyberattacks, particularly in the context of frequent hacking attempts on virtual exchanges.

The cryptocurrency industry is still relatively young and lacks comprehensive regulation in many jurisdictions. This lack of oversight can attract bad actors who believe they can operate with relative impunity.

Immunefi recently reported that the crypto industry lost $1.4 billion to hacks and fraud so far this year, with $685.5 million lost in the third quarter alone.


Get the news in your inbox. Explore Blockworks newsletters:

Tags

Decoding crypto and the markets. Daily, with Byron Gilliam.

Upcoming Events

Javits Center North | 445 11th Ave

Tues - Thurs, March 24 - 26, 2026

Blockworks’ Digital Asset Summit (DAS) will feature conversations between the builders, allocators, and legislators who will shape the trajectory of the digital asset ecosystem in the US and abroad.

recent research

allora-image.png

Research

Decentralized AI coordination networks solve crypto's growing architectural mismatch: applications built on trustless infrastructure shouldn't depend on centralized intelligence providers. By turning model outputs into competitive marketplaces, protocols like Allora are building the permissionless intelligence layer that AI-powered DeFi and autonomous agents require.

article-image

Futuristic DeFi is stuck inside the computer. An old idea might be its escape hatch

article-image

Money market indicators are flashing liquidity stress again as crypto underperforms equities

article-image

From passageways to penumbras: a history of private life

article-image

BTC’s Asia-session move and Ethena’s weaker yields reflect a market adjusting to tighter yen funding and softer derivatives carry

article-image

What Monad’s launch, MegaETH pre-market pricing, and the Berachain refund story say about today’s infra market

article-image

Prediction markets are hitting record volumes, while Neutrl opens one of crypto’s most overlooked yield opportunities