Crackonce

Offensive security · Software engineering

Security that attacks. Software that holds.

We audit like real attackers, build like senior engineers, and tune what you already run so it goes faster and costs less.

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OWASP WSTG · ASVS

Bug bounty mindset

Edge-first engineering

Vulnerabilities reported and accepted at

  • PayPal
  • Shopify
  • Snapchat
  • OKX
  • MetaMask

And other Fortune 500 companies and global leaders in their sector, through their bug bounty programs.

View track record on HackerOne

Services

Three lines of work, one standard: break what was built wrong, build what can't be broken, and tune what already runs until it flies.

Offensive security

Hands-on offensive security, using the same techniques that find critical bugs in the most hardened platforms in the world.

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01Web & API pentestingManual penetration testing of web applications and REST/GraphQL APIs, with OWASP methodology and real bug bounty techniques.02Security auditsIn-depth review of code, architecture, authentication flows and cloud infrastructure.03Continuous securityRecurring bug bounty–style assessment: every new feature gets tested with an attacker's eyes.

Software consulting

Digital products built with senior engineering judgment and security baked in from the very first design.

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04Web development & landing pagesFast, accessible corporate sites and landing pages optimized for SEO and conversion, deployed on the edge.05Custom SaaS developmentFrom MVP to production: scalable architecture, authentication, payments and multi-tenancy without rewrites.06Integrations & automationConnect your business with third-party APIs: payments, CRMs, ERPs and automated workflows without manual work.

Performance & infrastructure

Your system, faster and cheaper. We measure before touching anything and prove the improvement with numbers.

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07Performance tuningSlow applications and APIs, diagnosed with data and made fast where it actually counts: at the 99th percentile.08Database tuningSlow queries, missing indexes and schemas that don't scale: diagnosed and fixed with measurable impact.09Cloud cost optimizationAn audit of your infrastructure bill: we cut the invisible spend and redesign what is expensive by design.

Why Crackonce

The difference isn't the methodology. It's who does the work.

  • An automated scanner and a 200-page report.

    Manual work on your business logic, chaining flaws until the real impact is proven.

  • Theoretical findings written as "this could be exploitable".

    A reproducible proof of concept for every finding. If it can't be exploited, it isn't reported.

  • A salesperson sells, a junior executes.

    You always talk to the person who finds the bugs and writes the code.

  • They hand over the report and the relationship ends there.

    Fix retesting included: it's not done until it's fixed.

  • Security and development are two vendors blaming each other.

    The same person who breaks systems builds yours.

The credentials, in short

Offensive security

Vulnerabilities reported and accepted at global payment platforms, crypto exchanges and social networks through their bug bounty programs. The same techniques that work against them are applied to your systems.

View track record on HackerOne

Software consulting

Years of building and operating real product: multi-tenant SaaS, critical payment integrations and sites deployed on the edge. Architectures designed to scale without rewrites — and to be maintained by your team, not by me.

How we work

A clear process from start to finish. No surprises in scope or in the invoice.

  1. 01

    Scoping

    One call to understand your product, your risks and your goals. Together we define what gets tested — or built.

  2. 02

    Proposal

    Within 48 hours you get a fixed proposal: scope, timeline and fixed price. No fine print.

  3. 03

    Execution

    Manual work and continuous communication. Critical findings are reported immediately, not at the end.

  4. 04

    Delivery & retest

    Final report or product, a review session with your team, and verification that the fixes actually work.

Tell me what you need

An audit, a pentest or a digital product. Reply within 24 hours and a fixed proposal within 48.

Get in touchcorp@crackonce.com