Aperture Finance Faces $17 Million Loss in Blockchain Security Breach

By: crypto insight|2026/01/27 00:00:11

Key Takeaways

Aperture Finance suffered a substantial security breach, resulting in the loss of approximately $17 million across multiple blockchains.
The attack exploited smart contract vulnerabilities on Ethereum, BNB Chain, Arbitrum, and Base networks.
The breach bypassed traditional liquidity pool drains, instead manipulating user authorization loopholes.
Aperture Finance has taken immediate steps to halt further losses by disabling critical frontend functionalities.
Users who have interacted with the compromised contracts are advised to revoke permissions to prevent further unauthorized asset transfers.

WEEX Crypto News, 26 January 2026

In a significant security incident, decentralized finance platform Aperture Finance has confirmed that its V3 and V4 smart contracts were breached, resulting in an estimated loss of around $17 million. This attack, which hit various blockchain platforms such as Ethereum, BNB Chain, Arbitrum, and Base, marks a substantial setback for the company renowned for its advancements in AI-powered DeFi solutions.

Breakdown of the Aperture Finance Security Breach

Nature of the Attack

Unlike conventional flash loan exploits, the recent breach at Aperture Finance exploited vulnerabilities in the company’s smart contracts, enabling attackers to transfer user assets across multiple blockchains. This incident underscores the critical nature of security in the DeFi space, where wallet authorization plays a pivotal role. Notably, the attackers utilized permissions granted to the smart contracts by users, allowing them to manipulate authorized wallets directly even if users were not actively engaged in transactions at the time.

Immediate Measures and Official Response

Following the detection of irregular activities, Aperture Finance worked swiftly to avert further damage by shutting down essential functionalities on its platform. This move aims to prevent any new authorizations from being granted, thereby cutting off further potential exploitation routes for the attackers. The company issued an emergency notification on social media, asserting their ongoing collaboration with external security experts to unravel the source of the compromise comprehensively.

In response, prominent security entities such as Blockaid and TenArmor have also flagged the potentially malicious addresses involved, offering insights into the continued movement of misappropriated funds. The affected community members within Aperture Finance have started to demand compensation and recovery plans. Nonetheless, as the investigation is ongoing, the top priority remains the management of existing risks and protection of remaining assets.

User Advisory and Preventive Actions

To mitigate further risks, Aperture Finance has directed all users who have previously interacted with the vulnerable V3 or V4 contracts to immediately revoke their authorizations from the specified contract address, 0xD83d960deBEC397fB149b51F8F37DD3B5CFA8913. Utilizing blockchain authorization management tools, users can effectively terminate permissions, thereby safeguarding their resources until the remedial technical measures stabilize the contracts.

Wider Implications for the DeFi Ecosystem

This event serves as a stark reminder to the DeFi community concerning the paramount importance of authorization management—a factor equated closely with asset security. As the DeFi landscape continues to evolve, strengthening authorization protocols is critical to thwart potential vulnerabilities and safeguard user funds.

Aperture Finance has historically been a leading figure in DeFi innovation, leveraging AI-driven solutions to aid blockchain adoption and optimize intricate trading processes. However, incidents like these underline the need for continued vigilance and advancement in security practices. For those interested in exploring secure and innovative trading platforms, consider signing up for comprehensive services through [WEEX](https://www.weex.com/register?vipCode=vrmi).

FAQ

What caused the Aperture Finance breach?

The breach was caused by exploitable vulnerabilities in Aperture Finance’s V3 and V4 smart contracts, specifically targeting user-defined authorizations which allowed for unauthorized asset manipulation.

Which blockchains were affected by the Aperture Finance exploit?

The exploit affected multiple blockchains, including Ethereum, BNB Chain, Arbitrum, and Base networks.

How much did Aperture Finance lose as a result of the breach?

The breach led to a loss of approximately $17 million, making it a significant incident within the DeFi space.

What actions has Aperture Finance taken to prevent further loss?

Aperture Finance has disabled critical frontend functionalities to stop new authorizations and is collaborating with external security experts to address the breach’s root cause.

How can users protect their assets from similar breaches in the future?

Users can protect their assets by promptly revoking unnecessary authorizations on blockchain platforms and adopting comprehensive security measures when managing wallet permissions.

-- Price

On March 16, 2026, in Dallas, Texas, USA, CanGu Company (New York Stock Exchange code: CANG, hereinafter referred to as "CanGu" or the "Company") today announced its unaudited financial performance for the fourth quarter and full year ended December 31, 2025. As a btc-42">bitcoin mining enterprise relying on a globally operated layout and dedicated to building an integrated energy and AI computing power platform, CanGu is actively advancing its business transformation and infrastructure development.

2025 Full Year and Fourth Quarter Financial and Operational Highlights

• Financial Performance:

Total revenue for the full year 2025 was $688.1 million, with $179.5 million in the fourth quarter.

Bitcoin mining business revenue for the full year was $675.5 million, with $172.4 million in the fourth quarter.

Full-year adjusted EBITDA was $24.5 million, while the fourth quarter was -$156.3 million.

• Mining Operations and Costs:

A total of 6,594.6 bitcoins were mined throughout the year, averaging 18.07 bitcoins per day; of which 1,718.3 bitcoins were mined in the fourth quarter, averaging 18.68 bitcoins per day.

The average mining cost for the full year (excluding miner depreciation) was $79,707 per bitcoin, and for the fourth quarter, it was $84,552;

The all-in sustaining costs were $97,272 and $106,251 per bitcoin, respectively.

As of the end of December 2025, the company has cumulatively produced 7,528.4 bitcoins since entering the bitcoin mining business.

• Strategic Progress:

The company has completed the termination of the American Depositary Receipt (ADR) program and transitioned to a direct listing on the NYSE to enhance information transparency and align with its strategic direction, with a long-term goal of expanding its investor base.

CEO Paul Yu stated: "2025 marked the company's first full year as a bitcoin mining enterprise, characterized by rapid execution and structural reshaping. We completed a comprehensive adjustment of our asset system and established a globally distributed mining network. Additionally, the company introduced a new management team, further strengthening our capabilities and competitive advantage in the digital asset and energy infrastructure space. The completion of the NYSE direct listing and USD pricing also signifies our transformation into a global AI infrastructure company."

"As we enter 2026, the company will continue to optimize its balance sheet structure and enhance operational efficiency and cost resilience through adjustments to the miner portfolio. At the same time, we are advancing our strategic transformation into an AI infrastructure provider. Leveraging EcoHash, we will utilize our capabilities in scalable computing power and energy networks to provide cost-effective AI inference solutions. The relevant site transformations and product development are progressing simultaneously, and the company is well-positioned to sustain its execution in the new phase."

The company's Chief Financial Officer, Michael Zhang, stated: "By 2025, the company is expected to achieve significant revenue growth through its scaled mining operations. Despite recording a net loss of $452.8 million from ongoing operations, mainly due to one-time transformation costs and market-driven fair value adjustments, the company, from a financial perspective, will reduce its leverage, optimize its Bitcoin reserve strategy and liquidity management, introduce new capital to strengthen its financial position, and seize investment opportunities in high-potential areas such as AI infrastructure while navigating market volatility."

Fourth Quarter 2025 Ongoing Operations Financial Performance

Revenue

The total revenue for the fourth quarter was $1.795 billion. Of this, the Bitcoin mining business contributed $1.724 billion in revenue, generating 1,718.3 Bitcoins during the quarter. Revenue from the international automobile trading business was $4.8 million.

Operating Costs and Expenses

The total operating costs and expenses for the fourth quarter amounted to $4.56 billion, primarily attributed to expenses related to the Bitcoin mining business, as well as impairment of mining machines and fair value losses on Bitcoin collateral receivables.

This includes:

· Cost of Revenue (excluding depreciation): $1.553 billion

· Cost of Revenue (depreciation): $38.1 million

· Operating Expenses: $9.9 million (including related-party expenses of $1.1 million)

· Mining Machine Impairment Loss: $81.4 million

· Fair Value Loss on Bitcoin Collateral Receivables: $171.4 million

Profit Situation

The operating loss for the fourth quarter was $276.6 million, a significant increase from a loss of $0.7 million in the same period of 2024, primarily due to the downward trend in Bitcoin prices.

The net loss from ongoing operations was $285 million, compared to a net profit of $2.4 million in the same period last year.

The adjusted EBITDA was -$156.3 million, compared to $2.4 million in the same period last year.

Full Year 2025 Ongoing Operations Financial Performance

Revenue

The total revenue for the full year was $6.881 billion. Of this, the revenue from the Bitcoin mining business was $6.755 billion, with a total output of 6,594.6 Bitcoins for the year. Revenue from the international automobile trading business was $9.8 million.

Operating Costs and Expenses

The total annual operating costs and expenses amount to $1.1 billion.

Specifically, they include:

· Revenue Cost (excluding depreciation): $543.3 million

· Revenue Cost (depreciation): $116.6 million

· Operating Expenses: $28.9 million (including related-party expenses of $1.1 million)

· Miner Impairment Loss: $338.3 million

· Bitcoin Collateral Receivable Fair Value Change Loss: $96.5 million

Profitability

The full-year operating loss is $437.1 million. The continuing operations net loss is $452.8 million, while in 2024, there was a net profit of $4.8 million.

The 2025 non-GAAP adjusted net profit is $24.5 million (compared to $5.7 million in 2024). This measure does not include share-based compensation expenses; refer to "Use of Non-GAAP Financial Measures" for details.

Financial Position

As of December 31, 2025, the company's key assets and liabilities are as follows:

· Cash and Cash Equivalents: $41.2 million

· Bitcoin Collateral Receivable (Non-current, related party): $663.0 million

· Miner Net Value: $248.7 million

· Long-Term Debt (related party): $557.6 million

In February 2026, the company sold 4,451 bitcoins and repaid a portion of related-party long-term debt to reduce financial leverage and optimize the asset-liability structure.

Stock Repurchase

As per the stock repurchase plan disclosed on March 13, 2025, as of December 31, 2025, the company had repurchased a total of 890,155 shares of Class A common stock for approximately $1.2 million.

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