Upbit Hack: 6-Year Repeat – Security Data Analysis
- On November 28, 2025, South Korean cryptocurrency exchange Upbit reported a meaningful security breach resulting in the unauthorized withdrawal of approximately ₩48 billion (roughly $37 million USD as...
- The compromised funds were initially transferred to an unknown wallet address. Upbit immediately halted all deposit and withdrawal services to investigate the incident and secure remaining assets.
- This is not the first time Upbit has been targeted by hackers.
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Upbit Hack: Cryptocurrency Exchange Targeted Again After Six-Year Hiatus
Table of Contents
Published November 29, 2025, 18:44:55 PST. Updated as new data becomes available.
What Happened? The 2025 Upbit Hack
On November 28, 2025, South Korean cryptocurrency exchange Upbit reported a meaningful security breach resulting in the unauthorized withdrawal of approximately ₩48 billion (roughly $37 million USD as of November 29, 2025, 18:44:55 PST) worth of cryptocurrency. The stolen assets included Bitcoin (BTC), Ethereum (ETH), and TRON (TRX) as reported by local news sources.
The compromised funds were initially transferred to an unknown wallet address. Upbit immediately halted all deposit and withdrawal services to investigate the incident and secure remaining assets. The exchange has stated that it is working with law enforcement and cybersecurity experts to track the stolen funds and identify the perpetrators.
The 2019 Precedent: A Similar Attack Six Years Prior
This is not the first time Upbit has been targeted by hackers. In November 2019, the exchange suffered a massive breach where approximately ₩58 billion (approximately $51 million USD at the time) worth of cryptocurrency was stolen according to Reuters. The 2019 hack involved a similar method of unauthorized withdrawals, raising questions about the exchange’s security infrastructure and its ability to prevent repeat attacks.
Following the 2019 incident, Upbit implemented several security enhancements, including cold storage for a larger percentage of its cryptocurrency holdings and improved multi-factor authentication protocols. The recurrence of a breach despite these measures highlights the ongoing challenges of securing cryptocurrency exchanges.
Impact and Affected Users
The immediate impact of the 2025 hack was the suspension of deposit and withdrawal services on upbit, causing significant disruption for its users. While Upbit has pledged to cover the losses from its own reserves, the incident has understandably shaken confidence in the exchange. The exact number of users affected is still being determined, but it is indeed expected to be substantial given upbit’s position as one of South Korea’s largest cryptocurrency exchanges.
The hack also has broader implications for the cryptocurrency market. It serves as a stark reminder of the security risks associated with centralized exchanges and could lead to increased regulatory scrutiny of the industry.The price of Bitcoin and other cryptocurrencies experienced a slight dip following the news of the hack, although the impact was relatively limited.
Timeline of Events
| Date | Event |
|---|---|
| November 28, 2025 | Upbit reports a security breach and halts all deposit and withdrawal services. |
| November 28, 2025 (later) | Upbit confirms the theft of approximately ₩48 billion in cryptocurrency. |
| November 29, 2025 | Investigation initiated with law enforcement and cybersecurity experts. |
| November 2019 | Upbit suffers a previous hack resulting in the
|