CodeWall Raises $4 Million Pre-Seed Led By Osney Capital To Build Autonomous Attack Agents For Enterprise Security

CodeWall has emerged from stealth with $4 million in pre-seed funding to build autonomous attack agents designed to continuously test enterprise security from an attacker’s perspective. The financing was led by Osney Capital, with participation from InReach Ventures, Antler, and angel investors.

The London-based company is developing what it describes as an offensive layer for enterprise security. Its autonomous agents begin from outside an organization without credentials, source code, or privileged access and work together to identify and verify potential paths that attackers could exploit.

CodeWall was founded by CEO Paul Price around the idea that advances in artificial intelligence are changing both sides of cybersecurity. While AI can allow attackers to automate increasingly complex attack chains, CodeWall is applying similar capabilities on behalf of defenders, enabling enterprises to continuously challenge their own security environments rather than relying primarily on periodic assessments.

The company’s agents investigate potential vulnerabilities in parallel and share findings through a persistent investigation graph. This allows weaknesses discovered in one application to become starting points for examining connected systems, identities, and data. CodeWall then provides defenders with evidence showing what could be compromised and how an attacker could reach it.

CodeWall is already working with banks and financial institutions to identify and verify exploitable attack paths. Earlier in 2026, its autonomous agents identified vulnerabilities across platforms belonging to McKinsey & Company, Boston Consulting Group, and Bain & Company. The research included gaining read and write access to the production database supporting McKinsey’s Lilli AI platform within two hours.

Axos Financial is also working with CodeWall to incorporate autonomous offensive security into its security program. The approach is intended to allow applications and systems to be tested more frequently as enterprise infrastructure changes and potential vulnerabilities emerge.

Unlike a point-in-time penetration test, CodeWall is designed to repeatedly investigate an authorized environment as systems change, applications are updated, or vulnerabilities are fixed. The company’s goal is to make sustained adversarial testing an ongoing part of enterprise security operations rather than an exercise performed once or twice per year.

The new funding will be used to expand the range of enterprise environments where CodeWall’s autonomous attack agents can operate and further develop capabilities around sustained testing, verification, and remediation workflows. The company also plans to grow its offensive security, engineering, customer success, and go-to-market teams in London.

KEY QUOTES:

“Enterprises shouldn’t have to wait for a real attacker to find out whether their defenses hold. That’s why we’re turning offensive security from a periodic assessment into a permanent capability, giving every enterprise an attacker that keeps looking for a way in. We’re here to put the offensive advantage in the hands of defenders.”

Paul Price, Founder And CEO Of CodeWall

“We’re working with CodeWall to bring autonomous offensive security into our security program, helping us test our applications more frequently and from an attacker’s perspective. As AI changes what attackers are capable of, we think it’s important to be adopting these technologies early.”

Raghu Valipireddy, SVP And Chief Information Security Officer At Axos Financial

“For years, the advantage has sat with the attacker. They can keep probing, adapting and looking for another way in, while enterprises defend an environment that never stops changing. What we saw in CodeWall was an opportunity to turn that dynamic on its head by giving every enterprise an attacker of its own. One that starts from the outside, with no privileged knowledge, and keeps looking for a way through. We believe there’s a future where having an attacker working for you is as fundamental as having defenses in place, and CodeWall is building for that future.”

Paul Wilkes, Partner At Osney Capital