Trail of Bits

Software Assurance

Multi-disciplinary assessments across the SDLC

Overview

We perform multi-disciplinary security assessments at every stage of the SDLC — design, code, deployment, and post-release. Every engagement combines specialists from application security, blockchain, cryptography, and AI/ML, and pulls in our research team when novel work is required.

[PLACEHOLDER] The team you get is sized to your threat model, not to a fixed assessment template. Confirm framing with Dan.

Why work with Trail of Bits

  • 01

    Cross-functional from day one

    Every Software Assurance engagement assembles specialists from multiple disciplines — cryptographers, app-sec engineers, blockchain auditors, ML researchers — onto the same team. The seams between disciplines are where real failures hide, and a single-track review misses them.

  • 02

    We publish everything

    Methodologies, tools, and findings end up in public reports, papers, or open-source repos. ZKDocs, the Testing Handbook, Building Secure Contracts, Slither/Echidna/Medusa, and our public assessment reports are free for the industry to use — and for your team to learn from.

  • 03

    Deliverables your team can run with

    Every engagement ships fixes your engineers can drop into CI — custom Semgrep/CodeQL rules, fuzzing harnesses, invariant test suites, and short- and long-term SDLC recommendations your team can act on after we leave.

Services & deliverables

Technical onboarding discussion

Service

Our engineers -- carefully chosen for their expertise relevant to your project -- collaborate with your technical representatives to help ensure a smooth transition to the project. This session defines the project's scope, clarifies objectives, and actively engages all stakeholders to align both teams. We recommend including your project owner, technical stakeholders, and development team to cover all bases.

To facilitate project readiness, our project manager also oversees the collection of critical artifacts such as any source code, credentials, and relevant documentation.

Project kickoff & weekly status reports

Service

Communication is key to our process during an engagement. We will set up a shared chat server to discuss the engagement. For example, a Slack shared channel, but we can accommodate several platforms. In this chat, experts from Trail of Bits will be available to answer questions as they arise from your engineers and vice versa. We also hold weekly syncs between your team and ours to provide status reports about our findings.

For continuous and open communication, we use Slack or another preferred chat platform.

Final report and readout

Service

The engagement concludes with a final meeting where our engineers present a comprehensive report of our findings and the assessment recommendations and discuss strategic next steps to bolster your security posture. This final stage helps ensure that you have a clear understanding of how to move forward and improve your project's security.

Fix review

Service

After the assessment, clients who choose to implement our recommendations go through a fix review phase. We verify whether the applied fixes have addressed the initial issues without introducing new problems.

What ships with every engagement

Most pen-test firms hand you a PDF and walk away. Every Trail of Bits engagement ships a deliverable set your engineering team can plug into their workflow on day one and keep using long after we're gone.

Deliverable Trail of Bits Status Quo

Written findings report

Severity, difficulty, and exploit scenario for every finding.

✓ ✓

Short- and long-term SDLC recommendations

Not just bug fixes — process changes that prevent the next class of bug.

✓ —

Codebase maturity evaluation

Structured review of testing, documentation, access controls, and supply-chain hygiene.

✓ —

Exploit PoCs + code artifacts

Runnable demonstrations for each finding so your engineers can reproduce and verify fixes.

✓ Sometimes

CI-ready Semgrep / CodeQL rules

Custom static-analysis rules tuned to the patterns we found in your code.

✓ —

Fuzzing harnesses

Drop-in fuzzers your team keeps running after we leave.

✓ —

LLM and Claude-skill harnesses

Agent skills and prompts to help your team triage findings and pre-flight the next review.

✓ —

Live walkthrough + fix-review retest

We read out findings in person and re-test patches when they land.

✓ Sometimes

Open publication of generalizable findings

Novel issues turn into public research so the whole industry benefits.

✓ —

Comparison based on the standard published deliverables of the major application-security firms as of May 2026.

Software Assurance Services

We believe in the power of collaboration and the synthesis of knowledge across various fields to deliver unparalleled services to our clients. Our diverse company lines are not isolated silos of expertise. Instead, they represent a spectrum of capabilities that we seamlessly blend to meet the unique needs of each project.

AI/ML Security

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Blockchain

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Cryptography

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Application Security

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Get in touch

Book a technical office hours session

Book a complimentary one-hour meeting with one of our engineers to dive into a challenging technical issue, explore tooling options, and gain valuable insights directly from our experts. This session is purely technical — no sales talk, just a focused discussion that showcases our depth, talent, and capabilities.

Book a Session