The decentralized finance (DeFi) landscape witnessed a significant shift this week as 1inch, one of the sector’s premier decentralized exchange (DEX) aggregators, confirmed the permanent departure of co-founder Anton Bukov. The announcement follows a period of internal transition and public disclosure by Bukov, who revealed that he was dismissed from his role late last year. While the company maintains that its operational trajectory remains unaffected, the exit of such a pivotal figure marks the end of a foundational era for the project.
The Core Facts: A Founder’s Exit
The transition became public knowledge after Anton Bukov took to social media platform X (formerly Twitter) to clarify his status with the company he helped establish in 2019. Bukov stated that he was dismissed from his position in late November 2025. Following his termination, he confirmed that he currently holds no operational, architectural, or security-related responsibilities within the 1inch ecosystem.
Despite his departure from day-to-day operations, Bukov clarified that he maintains his status as a co-founder and retains a 50% equity stake in the company. This unique position—being a primary stakeholder while having no active role in the firm’s governance or product development—raises questions regarding the long-term management of the project. Simultaneously, Bukov announced the launch of his new venture, "Second Tier" (tier.xyz), which aims to build secure and efficient financial infrastructure, signaling his intention to remain a force in the DeFi space.
Chronology of a Departure
The events leading to the official confirmation unfolded over several months, marked by internal friction and a public reveal that caught many in the crypto community by surprise.
- December 2024: 1inch manages a security incident involving a compromised resolver smart contract, though the core protocol remains untouched.
- March 2025: A separate security exploit targeting an obsolete Fusion V1 resolver contract results in a $5 million loss. While assets are largely recovered, the event highlights the complexities of maintaining legacy infrastructure.
- Late November 2025: According to Bukov, he is formally dismissed from 1inch following what he described as an attempt to pivot into more hands-on operational and leadership management.
- December 2025: 1inch ceases all active collaboration with Bukov, effectively marking the end of his influence on the protocol’s architecture.
- Early 2026: Bukov publicly announces his departure and the launch of his new project, Second Tier, prompting a formal confirmation from the 1inch team.
Bukov’s Architectural Legacy
Since co-founding 1inch in 2019, Anton Bukov has been widely regarded as the technical backbone of the project. His work was primarily focused on the intricate architecture, security protocols, and economic design that allowed 1inch to dominate the DEX aggregator market.
Bukov is credited with spearheading the development of the "1inch Router," the "Fusion" swap engine, and the complex cross-chain infrastructure that defines the platform’s utility. In his statement, Bukov noted that feedback from colleagues and users encouraged him to step into a more holistic leadership role, moving beyond pure engineering. He suggested that his efforts to modernize management and operational oversight were the catalysts for the internal friction that ultimately led to his removal.
Official Responses: 1inch’s Stance
In the wake of Bukov’s announcement, 1inch moved quickly to reassure its stakeholders, liquidity providers, and the broader DeFi community. In a formal response, the organization confirmed that Bukov has had no active involvement in the project since December 2025.
The company’s leadership, now headed by co-founder Sergej Kunz and an existing executive team, emphasized that the roadmap for the 1inch Network remains firmly on track. "The protocols, infrastructure, and core systems continue to function as intended," the statement read.
Notably, 1inch refrained from engaging with the specifics of Bukov’s claim that he was "fired," focusing instead on the continuity of the brand. By downplaying the personnel change, the company is attempting to project an image of institutional maturity, signaling that the network has outgrown the need for the individual contributions of its founders.
Security Context: The 2025 Challenges
The timing of this leadership transition coincides with a year of heightened security scrutiny for 1inch. In March 2025, the platform faced a $5 million exploit involving an obsolete Fusion V1 resolver contract. While the platform was able to negotiate with the attacker and recover a significant portion of the stolen funds, the incident served as a reminder of the "technical debt" inherent in rapidly evolving DeFi protocols.
Before that, in December 2024, a private key breach compromised a separate resolver contract. These incidents underscore the immense difficulty of managing decentralized systems that rely on complex, interconnected smart contracts. While there is no public evidence linking these security incidents to the personal disagreement between the co-founders, the departure of the project’s lead architect during a period of recurring security challenges highlights the pressure under which the engineering team has been operating.
Implications for the Future of 1inch
The departure of a co-founder with a 50% equity stake who has been the primary architect of a project’s technical framework is a major corporate event. For the 1inch Network, the implications are three-fold:
1. Shift in Governance and Leadership
With Anton Bukov out, the weight of the project shifts entirely to Sergej Kunz. This centralizes decision-making power. In the world of Decentralized Autonomous Organizations (DAOs), the influence of founders is often debated, but in practice, their technical guidance is usually the "North Star." 1inch must now prove it can innovate without its original technical architect.
2. Investor and Community Confidence
The crypto market is notoriously sensitive to leadership changes. Investors often view founders as the "insurance policy" for a project’s long-term survival. 1inch will need to demonstrate that its current team is capable of maintaining the same level of security and product velocity that characterized its rise to prominence.
3. The "Legacy" Challenge
1inch’s infrastructure is massive, encompassing routers, resolvers, and cross-chain bridges. Maintaining these, as evidenced by the security incidents of 2025, requires deep, institutional knowledge of the legacy code. With Bukov gone, the team must ensure that this "tribal knowledge" has been successfully transferred to the remaining engineers.
Final Summary: Looking Ahead
The departure of Anton Bukov is a defining moment for 1inch. While the company insists that its operations are unaffected and that the roadmap remains unchanged, the loss of a founding technical mind is rarely a neutral event.
For Bukov, the launch of Second Tier represents a fresh start, allowing him to apply the lessons learned at 1inch to a new, presumably more streamlined, architecture. For 1inch, the path forward is one of institutionalization. The platform must move beyond its "startup" roots and prove that it can function as a resilient, decentralized utility that is no longer dependent on the presence of its original architects. As the DeFi space matures, 1inch’s ability to navigate this transition will likely be viewed as a test case for how decentralized projects manage the inevitable divergence of their founders’ visions.
