About us

Zero Day Engineering is the art of seeing constraints as possibility, and architecting power dynamics from uncertainty. We don’t hunt for bugs; we identify ontological blind spots in computation and model how control emerges from breakage. We don’t develop exploits; we collapse potential into structure, bypassing limits through redirected execution logic. A zero-day is not just a coding error, it’s a signal which marks the path of transcendence. This is not a skillset. It’s a mindset: a way of thinking beyond systems, and achieving the impossible.

What began as individual hacker obsession now moves global policy. Exploit capability is no longer fringe—it is a strategic resource leveraged by corporations, governments, and independent operators alike. Yet most participants act tactically, reacting to surfaces. At Zero Day Engineering, we design cognitive and operational frameworks which contain exploit as a side effect. This is where research stops being a craft and starts becoming generative sovereignty.

Alisa Esage Shevchenko is a globally recognized cybersecurity icon, entrepreneur, and elite hacker; most famously known as the first ever female winner at Pwn2Own, the world’s top-tier hacking competition. But long before that historic win, Alisa had already made headlines as a formidable technological force. In 2016, the U.S. government officially sanctioned her and her former company, declaring her a national cybersecurity threat — a move that sparked international media coverage, including features in The New York Times and The Guardian. Self-taught since age 15, Alisa’s obsession with low-level systems, CPU internals, and offensive computation has led her to uncover critical vulnerabilities in software used by millions. Her work has been acknowledged by major vendors, CERTs, and global media; while remaining deeply respected within the elite research community. In 2019, Alisa founded Zero Day Engineering to distill her expertise into a structured, no-compromise training system — one that prepares professional security researchers to tackle the deepest, most complex topics in the field. Today, she continues to operate at the bleeding edge of exploit design, combining technical precision, strategic vision, and a reputation that governments couldn’t ignore.

At Zero Day Engineering, our first principle is simple: see the root system. All knowledge - technical, philosophical, or tactical - is layered atop foundational structures. By tracing these structures to their origin, we bypass the noise of surface trends and engage directly with the logic that governs complex systems at the core. This approach gives our systems scope without dilution, and depth without myopia. It allows us to solve hard problems with elegant models, build powerful solutions from minimalist design, and move effortlessly across domains that others treat as boundaries.

The real cause of compromise is not the exploit - it’s the model failure. Whether in code or in cognition, vulnerabilities arise from unexamined assumptions. As the human factor fades and systems complexity scales, the critical leverage point is clear: deep, strategic understanding of complex systems and their models. We don’t build "tools". We build frameworks of insight that dissolve the conditions for failure. Every product we release — from theoretical models to specialized training programs — emerges from original thought, precision modeling, and visionary clarity. Our audience is not everyone. It’s those who seek truth at the edge of the known, and are ready to act on it. We don’t segment knowledge - we unify it.