About us
We are Redlings.
Offensive security from Germany — so you stay one step ahead of attackers.
Redlings is an owner-led team of PhD security experts. We think like attackers and test your systems before anyone else does — with the depth of researchers and more than two decades of hands-on experience.
OSCP · OSCE · CISSP · GIAC — certified security experts
22+
Years of experience in offensive security & IT security
2
PhD founders & security researchers
OSCP·OSCE·CISSP
Elite certifications, plus GIAC & more
100 %
Owner-led & independent
Our mission
We make the digital space a trustworthy and secure environment — so businesses can focus on what they do best.
Your cybersecurity is our concern: from solving specific security problems to raising security standards across your organisation. The first step toward better security is knowing your own strengths and weaknesses precisely — we help you find the root of the risk and remove it for good.
Our approach
How we think
Three convictions shape every engagement — and set us apart from pure tool vendors.
The attacker’s perspective
We test your systems the way real attackers do. Following the “assume breach” principle, we uncover paths that standard checklists never reveal.
Scientific depth
As PhD cryptographers and researchers, we understand attacks down to the technical root — not just the what, but the why.
Partnership, not a checklist
We deliver clear reports, concrete measures and stay with you through remediation. For us, security is a shared journey.
The team
The expert team
Behind Redlings stand two PhD security experts — with a rare combination of academic depth and years of hands-on practice on the front line.
Dr. Ewan Fleischmann
Founder & Head of Offensive Security
PhD cryptographer and offensive-security expert with more than 22 years of experience in penetration testing, red teaming and IT security. OSCP, OSCE, CISSP — and a member of the GIAC Advisory Board.
Dr. Michael Gorski
Cybersecurity strategist · Security Operations & Incident Response
PhD IT-security expert focused on security operations, incident response and building security programmes — with experience at leading banks and corporations.
Why Redlings?
A Trusted Partner
In-depth threat analysis and consultation
A deep understanding of how hackers work
In accordance with recognized rules of technology (BSI, PTES, PCI DSS, OSSTMM, NIST, OWASP)
Extensive report with recommendations to fix found vulnerabilities
Comprehensive post-test support for effective elimination of detected risks
Credentials & trust
Certified & recognised
Our expertise is backed by internationally recognised certifications — held by the people who actually run your projects.
A selection of our references
These organisations trust our expertise in penetration testing, red teaming and security assessments.
For confidentiality reasons we show only a selection of our clients – many projects are subject to strict non-disclosure agreements.
Follow us on YouTube
Let’s talk about your security.
Our team is by your side — from the first assessment to a long-term partnership.