Contact us: info@tenendo.com

Offensive Cybersecurity Agency · Est. 2020

Security isn’t assumed — it’s verified.

We emulate a real-world attacker against your business — often with no prior knowledge of your infrastructure — then show you exactly how to close what we found.

OSCP · OSEP · CRTO certified operators
In-house tooling & payloads
PCI QSA & ISO 27001 LA

How we differ

A real adversary doesn’t get a briefing. Neither do we.

/ Offense

Attack without a head start

We can emulate a real-world attack with no additional information about your infrastructure. In-house tools and payloads raise the odds of a successful breach — and give your team genuine experience opposing a sophisticated threat actor.

/ Defense

Offense informed by blue-team depth

We fold our blue-team operations and compliance experience into every red-team engagement — with concrete recommendations on detection and response, monitoring and logging, and infrastructure hardening.

What we do

From a single app pentest to full adversary simulation.

Our services grew from focused security testing into technical due diligence, multi-cloud assessment, threat-led penetration testing, and custom R&D tooling.

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Purple Team Services

We run coordinated Red/Blue exercises where our operators attack your infrastructure while working directly with your security team to improve…
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Training, Audits, And Consulting

Tenendo provides expert guidance through CISO as a Service, Cybersecurity Consulting, and Technical Due Diligence, ensuring comprehensive support for your…

Client success stories

Real engagements, real impact.

“Instead of reporting a billion irrelevant issues, Tenendo focused on fewer, more relevant ones — letting us focus on what’s important. Their technical expertise is superb.”

— Client testimonial · finance sector

Experience & accreditations

Credentials across offense, defense, and compliance.

Offensive Security

  • OSCP
  • OSEP
  • CRTO
  • CRTE
  • eWPTXv2
  • BSCP
  • CMPen-iOS
  • CMPen-Android
  • HTB CBBH

Pro Labs & R&D

  • APTLabs
  • Cybernetics
  • RastaLabs
  • BlackSky AWS/Azure/GCP
  • SEKTOR7 MDA
  • Evilginx Mastery

Compliance & Audit

  • PCI QSA
  • P2PE
  • PCI 3DS
  • CISA
  • CCSP
  • CISM
  • CRISC
  • ISO 27001 LA
  • NIST CSF 2.0

Take control

Find out what a real attacker would find first.

Tell us your priorities and constraints. We typically return a tailored commercial offer within 1–2 business days — fixed-price projects welcome.