14 Experts at your service for cyber protection
Always on the lookout for solutions and sustainable organization, our hyperactivity is used to solve the needs of our customers or partners. When we're not scrambling to get the results our customers or partners want, we're concentrating on research and certification, enabling us to explore new concepts, increase our knowledge and come up with innovative ideas.
What makes us different ?
Governance, Trainings & Certification
Le Capitaine Cyber ©
Renowned expert in ISO/IEC 27001 & ISO 27K and cybersecurity governance. With over 20 years' experience in the field of information and communication technologies (ICT), he combines a young soul with strategic expertise, offering an effective approach to managing the risks associated with your assets in a constantly evolving environment.
Passionate about security by design and risk analysis, he makes a point of surrounding himself with the best professionals, guided by friendship and passion. A graduate of several universities and holder of multiple certifications, Capitaine Cyber keeps abreast of the latest technological advances to ensure optimum protection of your systems.
His proactive approach and ability to anticipate threats make him an invaluable ally for any organization wishing to strengthen its security posture. With Captain Cyber at your side, navigate serenely through the challenges of modern cybersecurity.
>20 years of experience
>12 years in INFOSEC
Marshall Tic
A trainer for Capitaine Cyber, he then set sail to become CISO As A Service (Chief Information Security Officer) all over the world. An expert in governance, risk analysis and procedure creation, he brings invaluable expertise to the field of cybersecurity.
Thanks to his international experience, he has acquired a global vision of IT security threats and best practices. His ability to develop effective governance strategies and implement robust processes makes him a respected leader in the field.
His expertise in risk analysis enables him to identify and prioritize potential threats, ensuring optimum protection of information assets. By creating tailor-made procedures, he helps organizations establish secure environments that comply with current regulations.
Always striving for excellence, he continues to share his knowledge and experience to train the next generation of cybersecurity professionals. His inspiring background and dedication make him an essential pillar for any organization wishing to strengthen its security posture on a global scale.
> 20 years of expertise
> 7 certifications
Commodore64
Our retired police commissioner, who specializes in forensics and training, is actively involved in our many projects to evangelize the cybersecurity disaster lands of our beautiful country.
Forensics is the discipline of investigating digital incidents.
For the uninitiated, it's a bit like conducting a police investigation, but in the world of computers and the Internet. When a computer system is attacked or hacked, the forensic specialist analyzes computers, networks and data to understand what happened.
They gather digital evidence, trace the hacker's actions and help strengthen security to prevent future attacks.
Thanks to his forensic expertise and commitment, our commissioner helps strengthen digital security and raise awareness of current issues.
His valuable experience is a major asset in our mission to protect and secure national infrastructures.
> 30 years of expertise
> 10 certifications
Swartzie
A cybersecurity trainer in the image of an antivirus: always vigilant, efficient, and above all, terribly friendly. Whether you're a complete novice or have already mastered a few tricks to protect your online accounts, Swartzie will guide you through the process in a friendly and educational way.
With him, you don't need to be a technology expert to understand how to secure your information. Securing your social network or choosing a Cyber Captain passphrase that's not “123456”? No problem, that's his area of expertise. And what's more, he does it with a smile!
He's also trained in NLP (Neuro-Linguistic Programming) and personal development. So he knows exactly how to motivate you to secure your digital life. With him, you won't just learn techniques: you'll leave with a new state of mind, ready to face the challenges of the digital age with serenity and positivity.
>15 years' experience
> 4 certifications
Gandalf
This project management expert is a recognized professional with over 10 years' experience, having worked in customs, among others. Certified in multiple AGILE methodologies, he is considered a first-rate project manager. His main focus is on reviewing the functionality and design of IT projects, ensuring that every detail is optimized for success.
His sharp mind enables him to manage multiple projects simultaneously with remarkable efficiency. His acerbic, unfailing honesty makes him an invaluable asset to any organization. As a member of the RANGERS multi-disciplinary team, he is an indispensable element, bringing rigor and expertise to the achievement of common goals.
>10 years' experience
> 5 certifications
Mister Cook Alias Kyoto
Like a Padawan aspiring to become a Jedi, Kyoto is passionate about Security by Design. By dint of reading procedures and reviewing tools, he asked to join the gang. His mastery of coffee is an important asset, as is that of Microsoft tools.
He still has a long way to go in cybersecurity, but his determination and enthusiasm are second to none. He's our Benjamin, and we're only going to have one! At least for the time being.
With the support of the team, he's ready to take on any challenge to become a true master in the art of cybersecurity. “The greatest teacher, failure is.” This maxim from Yoda can be linked to cybersecurity, as every failure or security flaw discovered is an opportunity to learn and strengthen systems.
Similarly, on the path to spiritual elevation, obstacles and mistakes teach us valuable lessons that help us to grow and improve.
Welcome to Kyoto!
> 2 year experience
> 2 certifications
Swartzie
Like a millennia-old glacier slowly shaping the landscape, ICEMAN moves forward with rare mastery and relentless precision. More than 20 years spent in the demanding realm of cybersecurity have forged a crystal-clear vision: governance is not just a structure, it is a living architecture; risk management is not just a method, it is an art.
From developing comprehensive strategies to the surgical execution of audits and risk analyses, ICEMAN is equally adept with words and tools. His decisions are guided by the cold lucidity of facts, but also by a deep sense of responsibility toward the organizations he protects.
Like crystals forming in the silence of the heights, its security policies and governance frameworks are built with patience and precision, eventually forming an elegant and indestructible bulwark against threats.
Faced with a storm, it does not yield: it reads it, anticipates it, and transforms it into a strategic advantage
>20 years' experience
> 9 certifications
Say hello to the Hackers
Gengis
Gengis is a high-level technical auditor, expert in the art of testing the robustness of IT infrastructures. Thanks to his advanced skills, he is able to stress servers by simulating realistic attack scenarios and exploiting the various open networks within the company to assess their security.
Combining in-depth technical mastery of systems with an understanding of network vulnerabilities, he quickly identifies vulnerabilities and proposes solutions to reinforce infrastructure resilience.
Alongside his technical skills, Gengis is also an accomplished ISO and standardization manager, ensuring that information security processes comply with international standards. His dual technical and standards expertise makes him an invaluable asset in ensuring compliance while optimizing the company's operational security.
>25 years of expertise
>10 certifications
Sherlock Code
This extraordinary hacker is an expert in the security of devices such as PCs, MACs, smartphones, IoTs and much more. He excels at managing consoles for EDR (Endpoint Detection and Response) and XDR (Extended Detection and Response) anti-malware solutions. These advanced security tools detect and respond to threats on endpoints and across the entire network, ensuring optimum protection against digital threats, even if 100% security remains a mirage.
Able to carry out infrastructure audits and audits focused on machines, firewalls and other critical components, its expertise is unrivalled. His impressive mastery of decryption systems makes him an exceptional protector, guaranteeing the security of your most sensitive data.
Passionate about artificial intelligence languages that enable dialogue with machines, he helps configure tools that enable teams to create procedures based on extensive cybersecurity knowledge.
His dedication to IT security and innovative spirit make him an indispensable asset for any organization wishing to strengthen its security posture.
>10 years of expertise
>10 Certifications
The Grinch
The Grinch is a talented hacker whose discretion is legendary.
You never know where he is, he doesn't call, and he doesn't have any social networks... at least, none that you know of. Able to set up encrypted telecommunication instances, he is also able to locate people in the forest who have left their smartphones on!
His mastery of monitoring tools enables him to keep abreast of as many CVEs (Common Vulnerabilities and Exposures) as possible, which are databases listing known security flaws in computer systems.
This in-depth knowledge of vulnerabilities enables him to reinforce the security of the infrastructures he protects.
An excellent trainer, he enjoys sharing his knowledge with other team members. Like the character whose name he bears, it's best not to be unfaithful to him! His skills are a major asset in ensuring the team's safety, enabling everyone to work in complete confidence.
> 20 years of expertise
> 10 Certifications
Hacker Vaillant
Hacker Vaillant is an undisputed champion of vulnerability testing. Vulnerability testing involves assessing the security of a computer system by actively searching for potential vulnerabilities. By identifying these vulnerabilities before anyone else does, he helps to strengthen the protection of digital infrastructures.
An expert in bug bounty, he takes part in programs where companies encourage ethical hackers to discover and report flaws in their systems in exchange for rewards. This proactive approach enables organizations to correct security problems before they are exploited.
Always on the lookout for the ultimate flaw or zero-day, which is a vulnerability unknown to developers and for which no solution yet exists, Hackeur Vaillant is at the cutting edge of cybersecurity. Its aim is to detect these critical vulnerabilities and prevent major risks.
In addition to his exceptional technical skills, he also makes excellent coffee! His legendary calm and passion for music keep him focused and creative. But beware of the breach, because with Hackeur Vaillant, no vulnerability stays hidden for long.
> 20 years of expertise
> 5 Certifications
PinkUnicorn
PinkUnicorn is a formidable application security expert, capable of bypassing web application firewalls (WAFs) and exploiting vulnerabilities through sophisticated code injections. His mastery of attack techniques and experience in penetrating critical systems enable him to test and reinforce web application security against the most advanced threats.
When he was a child, he liked to hide in his room and create malware, then find the knights to eradicate it.
Using OWASP 4.0.3 as its verification framework, PinkUnicorn carries out rigorous and systematic security audits, covering all stages of vulnerability assessment. Its methodical approach, coupled with in-depth technical expertise, ensures that the applications tested comply with the most stringent security standards.
PinkUnicorn's skills help to identify and remedy security flaws quickly, making systems more robust in the face of cyber-attacks.
> 10 years of expertise
> 5 certifications
Dr. No
Dr. YES… but not to just anything!
In the demanding world of governance and cybersecurity, there is a figure who is as inspiring as he is essential: Dr. NO. No cape, no fanfare, but a clear mission: to protect so we can move forward more effectively.
An engineer, a Ph.D. in technology, and an audit expert, he doesn’t say “no” for the sake of it, but to better say “yes… to robustness, security, and peace of mind.” With the precision of an architect and the teaching skills of a mentor, he turns challenges into opportunities.
His colleagues know it: behind every “no” lies a solution. CIOs, deep down, are grateful to him (even if they don’t always admit it). And government agencies? They welcome him with a smile and a cup of coffee.
At night, when the world is asleep, he explores the frontiers of technology, tracking down vulnerabilities like a craftsman refining his work. His idea of relaxation? Studying a solid NIST Framework, paired with a dash of ISO 27001 to inspire his next innovations, and relentless monitoring of CVEs.
His motto?
“Security isn’t a roadblock—it’s the foundation that lets us go further, faster, and with complete confidence.”
> 8 years of expertise
> 4 Certifications
> PHD
Ragnard
A Viking and a hacker? Two different eras in a single person.
This modern warrior doesn’t raid villages; he protects infrastructure and much more.
Although 100% security is a myth, he continues to fight to get as close to it as possible—that’s his raison d’être.
As much a leader of men as he is an audit expert, he scrutinizes infrastructure—firewalls, machines, networks—with the precision of a Nordic blacksmith sharpening his blade. His decryption skills make him a guardian of sensitive data, capable of thwarting the most devious traps. But what sets him apart is his team spirit: he trains his teams, shares his knowledge, and transforms each member into a human bulwark against cyber enemies.
At his side, the teams venture fearlessly into uncharted territory, knowing that every vulnerability patched and every threat thwarted is a victory won together. Because this cyber Viking doesn’t fight for glory, but for a greater cause: a digital world where everyone can navigate freely, safely, and confidently.
> 15 years of expertise
> 9 Certifications
Real “Seniors"
With us, the importance of experience is paramount. Unlike some organizations where the title of Senior is awarded too quickly, we only award it after a minimum of 7 years' experience in the same sector. This essential requirement guarantees the expertise of our professionals. No senior consultant or advisor has less than 10 to 30 years' experience.
We've also introduced a rigorous progression system for our younger staff, with clearly defined stages in Jedi mode: Padawan (3 years), Jedi (5 years) and Master (7 years). This approach underlines our commitment to continuous skills development, in both French and English.
For us, time, practice and expertise are the cement of our knowledge. Experience and safety are taken very seriously. Our spirit is cool, geeky and quirky, while offering high-value-added work.
“The mind is not a vase to be filled, but a fire to be kindled.”
- Plutarch
Academics and Bachelors
Our teams are made up of a variety of backgrounds: polytechnics, industrial engineers, even sales engineers. We also have graduates in computer science and economics, enriched by multiple masters specializing in management or strategic intelligence.
A few technical exceptions confirm the rule, because while method is essential, passion remains paramount.
However, all this is rigorously supervised by the certifications and cyber combat course we impose on our RANGERS! Joining the team takes time, as its composition demands. Confidence in learning and sharing make us a multi-talented team.
Team members and operators, in both management and technical fields.
“The true measure of a man's worth lies in his ability to transcend obstacles."
- Marcus Aurelius
Technically multi-certified
A few certifications from RANGERS Technical Experts allow insiders to understand our added value :
CyberSecurity and Pentesting
CEH Certified Ethical Hacker
OSCP Offensive Security Certified Professional
CRTO Certified Redteam Operator
GIAC Web Application Penetration Tester (GWAPT)
GIAC Security Essentials (GSEC) SEC401
GIAC Certified Enterprise Defender (GCED) SEC501
GIAC Certified Incident Handler (GCIH) SEC504
GIAC Systems and Network Auditor (GSNA) SEC507
GIAC Cloud Security Automation (GCSA) SEC540
GIAC Critical Controls Certification (GCCC) SEC566
GIAC Python Coder (GPYC) SEC573
GIAC Defense Against Advanced Threats (GDAT) SEC599
GIAC Reverse Engineering Malware (GREM) FOR610
GIAC Exploit Researcher and Advanced Penetration Tester (GXPN) SEC660
Advanced Purple Teaming - Adversary Emulation and Detection Engineering SEC699
Certification manufacturers :
ESET ; FORTINET ; MICROSOFT ; CISCO ; SAFETICA
Multi-Certified in Management
A few of the certifications held by RANGERS Management Experts will help you understand our added value :
Security and Risk Management :
ISO/IEC 27001 Senior Lead Implementer
ISO/IEC 27002 Senior Lead Manager
ISO/IEC 27005 Senior Lead Risk Manager
ISO/IEC 27032 Senior Lead Risk Manager
EBIOS Risk Manager
CISM: Certified Information Security Manager
CISSP: Certified Information Systems Security Professional
European directives and laws :
NIS 2 Lead Manager
DORA Lead Manager
CDPO Certified Data Protection Officer GDPR&RGPD
Project Management & Co :
CMMI for Developments
Business Process Modelling ARIS7
Prince 2 Foundations