We build web applications. And we test them the way attackers do.
We design and ship custom web applications, and we test web software the way a real attacker would. The second discipline is why the first one holds up.
Led by a DEF CON Black Badge holder — won on Dark Money at DEF CON 34, one of ten contests authorised to award one.
Product-grade web applications
Built to hold up under real traffic and real attackers. Senior engineers only, no handoff to a junior bench after the pitch.
- Greenfield product builds, from schema to ship
- Rescue and hardening of inherited codebases
- API design, integrations, and data architecture
- Threat modeling in the design phase, not bolted on after
We find the issues before someone else does
Security testing by people who write production code for a living, so the findings come with remediation your team can actually merge.
- Application penetration testing and code-assisted review
- Vulnerability research and coordinated disclosure
- Architecture and threat-model review
- Post-incident technical analysis
Most shops do one or the other.
Teams who have only ever built software tend to ship the same handful of bug classes for years, without ever finding out.
Teams who have only ever tested it tend to write findings nobody can action, and the backlog grows instead of shrinking.
We do both, so the threat model shows up in the design review, and the remediation advice comes from someone who has had to implement it.
DEF CON
Black Badge
Awarded to winners of DEF CON’s hardest contests. It is the one credential in this field that cannot be bought, studied for, or renewed — and it does not expire because the work behind it does not.
Arkamind’s principal, Artem Kamshilin, holds one — won on Dark Money at DEF CON 34, after eight years competing on CMD+CTRL ranges.
Interview with the contest organisers- DEF CON Black Badge
- 2026
- Years shipping production software
- 28
- Years in security research
- 23
Three ways to start.
Every engagement starts with a scoping call. We will tell you if we are the wrong fit.
Fixed-scope delivery
A new application or a major module, taken from discovery through architecture, build, and launch.
Time-boxed assessment
A defined scope, tested thoroughly. Findings, evidence you can reproduce, remediation guidance, and a retest once you have fixed them.
Ongoing senior capacity
Feature work, code review, and standing security coverage for a team that needs depth it cannot hire.
Selected engagements
All case studiesA clinical SaaS provider in ophthalmic surgery
Took a calculation engine that ran only on local machines to a deployed web application inside a twelve-week vendor deadline. It has since analysed hundreds of thousands of procedures.
A B2B SaaS provider
Contained a compromise across the shared hosting behind more than a hundred customer-facing sites, with the business-critical systems back inside three days.
Tell us what you are building, or what you are worried about.
One email gets you a scoping call with the person who will do the work. No discovery questionnaire, no account executive.