RedSentinel

    Your security, our obsession

    Cybersecurity experts dedicated to protecting French startups and scale-ups

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    Our Mission

    Democratizing world-class cybersecurity

    In a world where every line of code can become an entry point for attackers, we chose to stand on the side of defense.

    RedSentinel was born from a conviction: cybersecurity should not be a luxury reserved for large corporations. Every startup, every scale-up deserves enterprise-grade protection.

    Our Red Team approach means we test your defenses before real attackers do. We find vulnerabilities. We document them. We help you fix them.

    The best defense starts by thinking like an attacker.

    Our Approach

    4 layers of protection

    Defense in depth for maximum security

    01

    Proactive

    We anticipate threats before they strike. Constant monitoring and regular testing.

    02

    Precision

    Rigorous methodology, zero false positives. Every finding is actionable.

    03

    Partnership

    We become an extension of your security team, not just a vendor.

    04

    Improvement

    Threats evolve, so do we. Continuous training and permanent adaptation.

    Full protection activated
    Expertise

    Recognized expertise

    Proven skills at the service of your security

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    Client satisfaction

    All our clients recommend us

    TOP 0

    TOP Worldwide HackTheBox

    Ranking on the reference platform

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    Vulnerabilities identified

    Critical flaws discovered and fixed

    2025

    Cybersecurity Engineer

    Degree in progress

    Key skills

    Web & Infrastructure Pentest
    Red Team Operations
    Application security audit
    OSINT & Reconnaissance
    Social Engineering
    The Founder

    Alex

    Founder & Cybersecurity Expert

    Passionate about cybersecurity since forever, I founded RedSentinel with a clear mission: democratize access to enterprise-quality security for French startups and scale-ups.

    I believe every company deserves quality protection, regardless of size.

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    Vulnerabilities found
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    Client satisfaction
    TOP 0
    TOP Worldwide HTB

    Journey

    2025

    RedSentinel launch

    2024

    Top 86/9089 - HackTheBox Competitive Season

    2023

    Red Team expertise acquired

    2019

    First steps in security

    🇫🇷 France
    Why choose us

    Concrete results

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    Guaranteed response time

    We respond to all your requests within 24 hours

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    False positives

    Every reported vulnerability is verified and exploitable

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    Confidential

    Your data never leaves our secured infrastructure

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    Initial report

    First critical results delivered within 48 hours

    We called on RedSentinel for a security audit of our platform. The collaboration was smooth and very professional: the audit methodology is clear and reassuring, and we were able to follow progress step by step. Alexandre was available, educational and proactive on corrective measures to implement. We leave with a very structured report and a concrete roadmap to strengthen our security. I highly recommend RedSentinel to any tech team that wants to take their product security seriously.

    DigitalKin

    Thibaud Perrin

    CTO, DigitalKin

    RedSentinel Security Suite
    LIVE
    [SYSTEM] Initializing RedSentinel Security Suite v2.5.1...
    [OK] Loading security modules
    [OK] Connecting to vulnerability databases
    [OK] Analysis engine ready

    Ready to secure your business?

    Join the startups and scale-ups that trust us

    Free initial audit
    24h response
    No commitment
    Book a call
    About RedSentinel | Cybersecurity Experts France | ANSSI Aligned | RedSentinel