Most security firms read half
of your system.
Your application security firm probably cannot evaluate a threshold signature scheme. Your smart contract auditor probably cannot review a payments backend. The systems that need both — custody platforms, exchanges, fintechs adding digital assets — are where the money actually goes missing. That seam is where we work.
A report with ninety findings is not a better report.
The name is Latin. Cernere — to sift, to separate one thing from another. It is the root of discern, and of certain. It is also, precisely, the job.
Length is easy to produce. What you need is the short list: the findings an attacker can actually reach, the path to each one so your engineers can verify it themselves, and a straight answer on which of the rest you can safely leave.
“Security is not about seeing more. It is about separating what matters from what doesn’t.”
Narrow on purpose
We review application code, digital asset systems, and the cryptography that connects them. Work outside that we refer to someone who does it better, and we would rather do that than stretch.
Severity we can defend
Every critical finding arrives with the path to reach it. We would rather issue three findings you act on than ninety you file and forget.
Re-testing is included
When you have fixed the findings we verify them and issue a signed addendum, inside the original fee. Charging twice for one engagement is not a business model we want.
Reports written to be read
One document your engineers, your board and your counterparty can each read without translation. This market judges an auditor by report quality, and that is a fair test.
- Lines of code reviewed
- 340k
- Critical findings issued
- 61
- Value secured under review
- $2.1bn
The work we say no to.
Not because it does not matter. Because it is a different discipline with different economics, and a boutique that takes on adjacent work stops being good at its own. We will introduce you to someone who does these properly.
- Managed SOC, MDR and EDR deployment
- General IT security, endpoint hardening and firewall management
- Full-scope enterprise red teaming
- Phishing simulation platforms
- Compliance certification shepherding
How we work, in four moves
We start with what an attacker wants and what your system is worth to them. That decides where the days go, not the line count.
Manual review by people who have built this kind of system. Tools find the patterns; the findings that matter come from reading the code.
Every critical finding carries the path to reach it. Where we cannot demonstrate exploitability we grade it honestly rather than inflate the report.
Once you have remediated we verify each finding and issue a signed addendum. It is in the original fee, never billed as a second engagement.
Step 01 / 04
Request a scope call. We tell you what it needs.
Tell us what the system is and what you are worried about. The call takes about thirty minutes and ends with a fixed-scope, fixed-fee proposal. It costs nothing and we do not send a salesperson.
- hello@cernosec.com
- Response time
- One working day.