Proactive
We anticipate threats before they strike. Constant monitoring and regular testing.
Red Sentinel
Your security, our obsession
Cybersecurity experts dedicated to protecting Ukrainian startups and scale-ups
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.
4 layers of protection
Defense in depth for maximum security
Precision
Rigorous methodology, every finding documented with evidence and a fix.
Partnership
We become an extension of your security team, not just a vendor.
Improvement
Threats evolve, so do we. Continuous training and permanent adaptation.
Recognized expertise
Proven skills at the service of your security
Client feedback
A client CTO's public review of the audit
TOP Worldwide HackTheBox
Ranking on the reference platform
Actionable reports
Each finding comes with evidence and a remediation step
Cybersecurity eng. cursus
Engineering degree in progress
Alexandre
Founder & Cybersecurity Expert
Passionate about cybersecurity since forever, I founded RedSentinel with a clear mission: democratize access to enterprise-quality security for Ukrainian startups and scale-ups.
“ I believe every company deserves quality protection, regardless of size. ”
Journey
RedSentinel launch
Top 86/9089 - HackTheBox Competitive Season
Red Team expertise acquired
First steps in security
Concrete results
Response time
We respond to all your requests within 24 hours
Validated findings
Findings are confirmed before they appear in the report
Confidential
An NDA is signed before any technical contact
Report delivery
Report delivered within 7 days
Thibaud Perrin
"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."