On June 16, 2025, South Korea's virtual asset exchange Korbit abruptly entered an emergency inspection that would stretch on for more than 12 hours, sparking widespread anxiety among its users and the broader cryptocurrency community. The unexpected system shutdown began around 2:30 PM local time, rendering the exchange's website and mobile application inaccessible, and halting all trading, deposits, and withdrawals. This unprecedented downtime rattled investors who rely on the platform's 24/7 availability and raised unsettling questions about the security and stability of one of the country’s top five digital asset exchanges.
Korbit initially cited "exchange system stabilization" as the reason for the emergency inspection. However, as hours passed without resolution, the company updated its statement to specify that the work involved "internal network connection issue response." Despite these clarifications, the lack of prior notice and the extended duration of the outage fueled rampant speculation that the exchange had fallen victim to a hacking attack.
Such suspicions are hardly unfounded in the current climate. The cryptocurrency sector has been grappling with a surge in cyberattacks targeting exchanges and blockchain projects worldwide. Just recently, WEMIX, South Korea’s largest blockchain gaming project, suffered a breach, and Coinbase, the world’s largest crypto exchange, faced similar security incidents. Moreover, on June 6, 2025, the blockchain project ALEX, built on the Stacks (STX) platform, endured a second consecutive year of security breaches using the same method. These high-profile cases have left investors jittery, especially when a major platform like Korbit suddenly goes dark without transparent communication.
Throughout the ordeal, Korbit sought to reassure its users, repeatedly emphasizing that "investors' assets and data are completely safe" and that there was "no abnormality in customer assets and data." The exchange promised swift restoration efforts and committed to providing updates through app push notifications. Still, the prolonged outage—initially expected to conclude by 8 PM on June 16 but extended past midnight and into the early hours of June 17—deepened concerns.
The Financial Supervisory Service (FSS) of South Korea has been closely monitoring the situation, describing the shutdown as a "serious incident." An FSS official remarked, "The most important thing at this point is to restore and resume services. We have instructed Korbit to take fundamental measures to prevent further problems." The regulator is conducting an ongoing investigation to determine the root cause and to ensure that no user damage occurs. While the possibility of a hacking event has not been confirmed, the FSS noted that Korbit is required by law to carry insurance or maintain reserves to protect users in such cases.
Industry insiders have expressed alarm at the scale and duration of the shutdown. One cryptocurrency sector representative commented, "Exchanges operate 24/7, and such a prolonged shutdown is extremely rare. Even when major exchanges experience disruptions, they are typically resolved within minutes or at most an hour. This situation is unprecedented and could severely undermine customer trust in Korbit." The same insider highlighted the ever-present threat of hacking groups targeting exchanges for their assets, underscoring the high stakes for Korbit’s business continuity.
Korbit's position as a major player in South Korea’s crypto market is underscored by its membership in the Digital Asset eXchange Alliance (DAXA) and its partnership with Shinhan Bank, which provides real-name accounts for its users. The bank-exchange relationship is critical, and the protracted outage could negatively affect Korbit’s renewal evaluation with Shinhan, given that the FSS classifies external hacking as a risk that could cause "serious damage to business continuity." This adds another layer of pressure on Korbit to resolve the issue swiftly and transparently.
Users on social media and crypto forums voiced frustration and concern over the lack of clear communication and the potential impact on their assets. Many lamented delayed transactions and the inability to manage their portfolios during the downtime. The uncertainty has also led to speculation about possible compensation for any losses incurred due to the extended service interruption.
In response, Korbit reiterated its commitment to rapid recovery, stating, "We are proceeding with restoration work as quickly as possible to provide a stable service. Once the inspection is complete, we will notify users immediately via app push messages." Despite these assurances, the incident has raised broader questions about the resilience and security protocols of South Korea’s cryptocurrency exchanges, especially amid a global wave of cyber threats.
This episode also highlights the delicate balance exchanges must maintain between operational transparency and security. While emergency inspections and system upgrades are necessary to safeguard infrastructure, failing to provide timely and clear information can erode user confidence, sometimes more than the technical issues themselves.
As of the early hours of June 17, 2025, Korbit's emergency inspection was still ongoing, with no definitive end time announced beyond the extended window into 1 AM. The Financial Supervisory Service continues its investigation, underscoring the seriousness of the incident and the regulatory scrutiny facing virtual asset platforms in South Korea.
In an era where digital asset exchanges are the lifeblood of cryptocurrency markets, the Korbit shutdown serves as a stark reminder of the vulnerabilities these platforms face. For investors and regulators alike, the incident underscores the urgent need for robust security measures, transparent communication, and contingency planning to protect user assets and maintain trust in the rapidly evolving crypto ecosystem.