A cybersecurity studio that stays past the report.

Most engagements start with a penetration test. The harder part is keeping the findings closed afterwards and rebuilding what keeps failing. Same engineers, start to finish.

Research acknowledged by Apple, Microsoft, Google OSS VRP, Facebook, Twitter, Adobe, Intel and the U.S. Department of Defense.

Offensive Security

Web, mobile, network, cloud and smart-contract testing, plus red teaming and source-code review. Everything here starts by finding what an attacker would find first.

• Web Application Penetration Testing. Your web application and the APIs behind it, tested by hand against the running system. Every finding ships with a working reproduction, not a scanner signature.
• Mobile Application Penetration Testing. iOS and Android builds, the data they leave on the device, and the APIs behind them, tested on rooted and jailbroken hardware against the build you are about to ship.
• Network Penetration Testing. External perimeter and internal network, from the first exposed port to domain-wide privilege. Segmentation crossed to prove it, not read off a diagram.
• Cloud & Kubernetes Security. Cloud accounts and Kubernetes clusters tested the way an attacker moves through them: from an over-broad role or a leaked token to the data behind it.
• Red Team & Code Review. Objective-driven red team engagements that start from assumed breach, with source-code review when reading the code is the faster way to the objective.
• Smart Contract Audits. Line-by-line review of contract logic, accounting and upgrade paths against a frozen commit, with fuzzing and invariant tests, and the transaction sequence that triggers every finding.

Managed Security

Retained work that runs after the report lands: attack surface management, security operations, on-demand risk reduction, audit evidence and hardening.

• Attack Surface Management. We keep an inventory of everything you expose to the internet, re-check it as it changes, and confirm by hand what an attacker could actually use before it reaches you.
• Security Operations (SOC). Detection written and tested by people who run the attacks, alerts triaged by an engineer who knows your environment, and incident response when something is real.
• On-Demand Risk Reduction. A retained block of engineering time you draw down as security work comes up: a launch, a customer questionnaire, a fix to verify, a design that needs a second opinion.
• Compliance & Audit Readiness. Independent testing and the evidence behind it, scoped to your SOC 2, ISO 27001, PCI DSS or HIPAA boundary. We do not certify; we give your assessor what they need to sign off.
• Safeguarding & Hardening. We close what testing found and keep it closed: configuration baselines, identity, secrets, backups and logging, done with your engineers and verified by the people who test.

Engineering and AI

Web and mobile products, platform and cloud engineering, AI-native systems and business automation, built to the same standard we test against.

• Web Application Development. Web apps, platforms and APIs built by engineers who also break them for a living. Authorisation, tenancy and failure paths are designed in before the first screen ships.
• Mobile App Development. iOS and Android apps, native or cross-platform, built on the assumption that the device is hostile and the client will be tampered with. Released under your store accounts, not ours.
• Platform & Cloud Engineering. Cloud accounts, infrastructure as code, CI/CD, identity, secrets and observability, built so that one leaked token or one compromised build runner cannot reach production on its own.
• AI-Native Systems. RAG pipelines and agents built with evals and permission boundaries from the start, and LLM red teaming for systems your own team has built. Both done by the same engineers.
• Business Automation. Internal workflows, integrations and approval pipelines automated with a person in the loop where it matters, least-privilege access, an audit trail and a way to stop every run.

How we run a penetration test

• Scope. One call to agree targets, rules of engagement and the testing window. Fixed price, fixed dates.
• Recon. We map the attack surface first, so the testing time goes to what is actually exposed.
• Exploit. Findings worked by hand against the running system, to OWASP WSTG and MITRE ATT&CK method, each with a proof that runs.
• Report. Written around the fix, by the engineer who found it, with CWE and CVSS v4.0 on every entry.
• Retest. When the fixes land we retest them and issue a letter of attestation.

Questions we get asked

We have never had a penetration test. Where do we start, and what will it cost?

Start with the system someone is already asking about: the app named in a customer's security questionnaire, the release an auditor wants evidence for, or the contract about to hold funds. One call is enough to scope it, and the price depends on what that call turns up: how many user roles and tenants the app has, how large the API is, which platforms are in play and whether source code is in scope. Before anything starts you get a written scope, rules of engagement, a fixed price and fixed dates. The retest and the letter of attestation are part of that price, not a second engagement.

Will you test our production environment?

Only where you agree to it, and that decision is written into the rules of engagement before we start. Staging lets us push harder on the paths that change data, such as bulk writes, account lockout and payment flows; production is the only place the real configuration, WAF rules and third-party integrations exist. Which one fits depends on how closely staging mirrors production, what customer data sits in each, and which actions you need us to avoid. Where production is in scope, the rules of engagement name the accounts we use, the testing window and who can stop the work.

We already run a vulnerability scanner. Is that not the same thing?

No. A scanner matches known signatures; it cannot tell that one tenant can read another tenant's invoices, that a refund can be issued twice, or that several low-rated issues chain into an account takeover. We work by hand, against the running system or the source, and nothing reaches the report without a working reproduction, mapped to CWE and rated with CVSS v4.0. If you already have scanner output, send it before the scoping call so the engagement is spent on what a scanner cannot see.

What do you need from us before testing starts?

A mutual NDA comes first, with PGP on request, before you share anything about the system. Then it depends on the work: target URLs and API documentation for a web test, the APK and IPA builds for a mobile test, repository access for code review or a smart-contract audit, and test accounts at every role you want covered, in two tenants if the app is multi-tenant. We also need a named contact for escalation and a decision on whether your WAF should see our traffic or let it through. If you have a vendor security questionnaire for us, send it at the same time; we complete it during onboarding.

We are in a different time zone. What happens if you find something critical while we are asleep?

You hear about it within the hour of it being confirmed, on the channel and escalation contacts you name at kickoff, with the reproduction attached and the engineer who found it on the other end. Everything else reaches the same channel as it is confirmed, so nothing is saved for a report on the last day. We are based in Tamil Nadu, India, and work with clients across time zones; the testing window is set in the rules of engagement, so whether we test inside or outside your working hours is settled before we start.

Will our auditor or our customers accept your report?

Acceptance is the assessor's decision, and we do not issue certifications. What we produce is the independent testing evidence they look for: a report with a working reproduction for every finding, a retest once your fixes land that records what actually closed, and a letter of attestation written for customers and auditors, so the full report can stay with your team. If you report into SOC 2, ISO/IEC 27001, PCI DSS or another framework, say so on the scoping call and we will scope the test around what your assessor needs to see and work alongside whoever signs off.

What happens to our data, credentials and findings?

Evidence is held encrypted, access is least-privilege and limited to the engineers on your engagement, and on request it is destroyed after the retest. Treat the test accounts you give us as temporary and rotate them once the retest closes. Client names stay undisclosed unless a client asks us to publish: the 26 case studies on this site are anonymized. We complete vendor security questionnaires during onboarding, so your procurement team has its answers before any testing starts.

You both test and build. Is that a conflict of interest?

It can be, so we are specific about where the line sits. When we test a system your team built, the same people can build the fix, so a finding becomes a fix without a hand-over to another vendor. When we build a system, a security test pass before launch is included, but that is us checking our own work, not an independent test. If an auditor or a customer needs testing by a party that did not build the system, raise it on the scoping call and we will tell you plainly whether we should be the ones doing it.

Tell us about the system at hello@yaamlabs.com or on the contact page. The reply comes from an engineer.