Simulated Attacks. Real Defense.

Pentest, red team, and vulnerability assessment run by offensive professionals.

Results

Our track record.

Companies our professionals supported in vulnerability research and bug bounty programs.

PayPal
Mercado Libre
American Express
Red Bull
Booking.com
Grab
Elastic
Dynatrace
Whatnot
Aikido
Services

Five lines. Each one run by people who think adversarially.

Pentest

We identify exploitable vulnerabilities in your environment, with proof-of-concept and a remediation plan prioritized by real risk.

  • Web application and API pentest
  • Infrastructure pentest
  • Cloud pentest
  • Mobile application pentest
  • AI pentest
  • Code review

Red Team

Operations that simulate real adversaries. We test detection, response, and your team's capacity to operate under Advanced Persistent Threat (APT) TTPs.

  • APT simulation and emulation
  • Advanced penetration testing
  • Social engineering
  • Incident response evaluation

Vulnerability Assessment

AI-assisted scanning, validated manually by an operator. Every finding ships with PoC, risk context, and a remediation plan.

  • AI-assisted scanning
  • Manual operator validation
  • Evidence and reproduction
  • Prioritized remediation plan

Phishing Simulation

Campaigns with pretext customized via OSINT. We measure who clicks, who reports, who hands over credentials. Then we train the gaps.

  • OSINT-customized campaigns
  • Engagement metrics
  • Behavioral analysis
  • Targeted training

Threat Intelligence

Continuous offensive intelligence. We monitor your exposure across channels SOC tooling can't reach: leaked credentials, dark web, C-level doxxing, and compromised supply chain.

  • Credential Hunting
  • Dark Web Surveillance
  • Executive & VIP Protection
  • Supply Chain & Third-party Exposure
About

We simulate real attacks to expose invisible risks.

Kaijin came out of a technical observation: most of the pentest market sells automated scanning dressed up as a report. Tools run by people without adversarial thinking, validated at the end by people who never actually thought like the real attacker.

We don't depend on scans. We simulate threats that think.

We operate as adversaries inside your environment. We test infrastructure at its limit and surface critical vulnerabilities across people, processes, and technology, the three layers where any organization's security actually lives or dies.

Through Red Team and adversary simulation operations, we reproduce the techniques, tactics, and procedures used by real attackers. The result is not a list of flaws. It is a strategic diagnostic of your ability to detect, respond, and resist.

We take your security maturity to a level no automated tool will reach.

Because security is not only about running tools. It is about understanding the adversary.

Differentials

Technical excellenceand business judgment.

Pentest is a marketing commodity. These are the points that change what you actually receive at the end of the engagement.

Operators, not consultants

A team of offensive professionals with a track record in real intrusions, vulnerability research, and complex operations.

Real severity

Every vulnerability gets a score calibrated by real impact and exploit probability. No inflated adjectives to make the report look bigger. Critical means critical.

Remediation as deliverable

A finding without a remediation plan is just a report. Every vulnerability ships with PoC, context, and a priority-ranked remediation roadmap based on actual risk, not adjectives.

Dual-view reports

Technical document for the IT team to execute the remediation. Executive document for the board to grasp risk in impact and cost terms. No translating between them.

AI as leverage

We built an internal offensive orchestration platform that amplifies our operators. AI handles volume and speed; the operator decides every exploit. AI optimizes the process; the operator manually approves every move.

Focus on what matters

We map your business's critical assets before testing. Every operation hour goes to the asset whose compromise causes material, contractual, or regulatory damage.

Technical authority backed by internationally recognized certifications

Certificação OSCP

OSCP

Certificação PNPT

PNPT

Certificação C-ADPenX

C-ADPenX

Certificação CRTP

CRTP

Certificação CRTE

CRTE

Certificação CRTA

CRTA

Certificação eJPT

eJPT

Certificação eWPTX

eWPTX

Certificação eMAPT

eMAPT

Certificação CMPen-Android

CMPen-Android

Certificação CMPen-iOS

CMPen-iOS

Certificação CRTO

CRTO

How we work

The path to digital resilience.

Four phases. No sales runaround. Each one has a decision gate before the next.

01

Diagnostic

Short technical meeting to understand your business context, most critical assets, credible threats, and what is and isn't worth testing.

02

Scope

Tailored proposal. No inflating operator days to deliver a pretty report. What you need, the time it takes, the price it costs.

03

Execution

Operators steering AI with a decision gate before every destructive action. Work runs in the agreed window, no friction in production.

04

Debrief

Delivery plus remediation workshop. Tech team gets direction; the board gets a risk synthesis. We follow through until the remediation closes.

Sectors

Sectors where a breach means material damage.

We are not verticalized. We operate in any regulated or critical sector where a breach costs money, contracts, or continuity.

Financial

Banks, fintechs, asset managers. LGPD, BACEN, PCI-DSS regulatory exposure.

Public Sector

Government agencies and critical infrastructure. CNJ, ANPD, sovereignty requirements.

Retail

E-commerce, payment gateways, fraud and account takeover defense.

Industrial

Critical infrastructure, OT/IoT networks, shop-floor and supply chain security.

Services

Business continuity, protection of customer and provider data.

Healthcare

Electronic medical records, critical hospital systems, LGPD-health compliance.

Contact

30-minute diagnostic.

You bring your context and priorities. You leave with an assessment of your exposure and a recommendation on scope and investment.

Emailcontato@kaijinsecurity.com

Channels

Direct conversation

0 / 2000

Kaijin uses your personal information only to reply to this inquiry. We don't sell or share.