Attackers always find a way. We find it first – with excellent

Red Teaming Services

Adversary simulation & penetration testing by offensive security experts. We've compromised hundreds of companies – and showed them exactly how we did it.

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20+ Years of experience in offensive security
Hall of Fame Google, Microsoft, Netflix & other Fortune 500 companies
20+ CVEs published by slashsec employees

Our clients

Statista

Statista relies on slashsec's comprehensive security consulting – with a particular focus on Web Security as well as external and internal Security Assessments.

SVD Büromanagement GmbH

SVD Büromanagement GmbH, ICT service provider for BVAEB and SVS in Austria, has trusted slashsec's expertise in Awareness and Windows Security for several years.

VBV-Gruppe

VBV-Gruppe relies on slashsec's expertise for regular Security Assessments, particularly in Social Engineering, Red and Purple Teaming, and Threat-Led Penetration Tests.

CERT.at

Austria's Computer Emergency Response Team regularly relies on slashsec's expertise for comprehensive pentests in infrastructure testing and Gray/Whitebox analyses.

LiSEC

The LiSEC Group relies on slashsec's expertise for regular internal and external penetration tests with a focus on Windows Active Directory security.

TSA

Traktionssysteme Österreich (TSA), a leading manufacturer of electromechanical drive systems, trusts slashsec for their Windows Active Directory security.

USTP – University of Applied Sciences St. Pölten

The University of Applied Sciences St. Pölten, a leading educational institution in digitalization and technology, trusts slashsec for the security of their digital assets. They specifically rely on our expertise in Web Application and Source Code Analysis as well as comprehensive Penetration Tests of their IT infrastructure.

Arbeiter-Samariter-Bund Austria

Arbeiter-Samariter-Bund Austria, Linz Group, trusts slashsec for comprehensive penetration tests of their internal infrastructure – focusing on the security and resilience of their IT systems.

Why choose our red teaming services

Better risk prioritization

Our offensive security experts working under real conditions will demonstrate attacks that may not have been considered before.

Enormous training potential

Through realistic adversary simulation, your employees learn how to detect and respond to real attacks.

Defense benchmark

Our security assessments truly evaluate the efficiency of your defense investments and provide clear recommendations on where improvements are needed.

Awareness

Red teaming demonstrates real impact, helping to create awareness without excuses like "But the attack wasn't conducted under real conditions".

David Wind - Founder and CEO of slashsec Red Teaming GmbH Vienna

The story behind slashsec

At slashsec, we all come from the pentesting field. To this day, we support our clients with classic security assessments, uncovering vulnerabilities and helping to fix them.

But pentests often don't reflect reality. Investments in defense mechanisms have increased massively, but are usually not tested along. New employees are hired to defend against APTs, but have never experienced a real attack.

That's why we decided to set a clear focus as an offensive security company: Red Teaming and adversary simulation services.

We've had the opportunity to run adversary simulation engagements against international corporations for several months and can confidently say that the added value is real.

We all have one thing in common at slashsec:
Years of experience, absolute expertise in offensive security, and an authentic hacker mindset.

Let's talk about whether and how our red teaming services can help your company too.

I look forward to meeting you!

David Wind

How it works

1

Free consultation

In 30 minutes, we determine if and how we can help you. No obligations, no cost.

2

Strategy & scoping

Together, we define the scope, objectives, and rules of engagement – tailored to your organization.

3

Assessment & report

We execute the assessment and deliver a detailed report with clear, actionable recommendations.

Our partners

TÜV TRUST IT

As a neutral and independent partner, TÜV TRUST IT aims to support companies in securing their information assets, which are made available through IT infrastructures and processes.

RootSys GmbH

RootSys GmbH, founded by experienced security experts with decades of experience, specializes in providing first-class security services including penetration testing, code audits, and security consulting.

Certitude Consulting GmbH

Certitude is a consulting company specializing in cyber risk management. They accompany customers from problem analysis to the implementation of necessary measures.

Syslifters GmbH

Syslifters is a young security company focused on pentests. Their specializations are internal corporate networks (Active Directory/Entra ID infrastructures) and web applications.

Eurofit Informationstechnologie GmbH

Eurofit is your central contact for all information and communication technology (ICT) matters.

Bacher Systems EDV GmbH

Bacher Systems takes co-responsibility for the added value of your IT – with managed services in cybersecurity, infrastructure & platforms, digital identities, and data analytics.

CyberDanube Security

CyberDanube specializes in OT, (I)IoT, and Embedded Security with a dedicated hardware lab in Vienna. As a CVE Numbering Authority (CNA), they identify zero-day vulnerabilities in critical infrastructure.

GEKKO

IT service partnership at eye level – with GEKKO, IT security and stability for small and medium-sized businesses. For over 20 years, they have been supporting companies on their path to success with a broad spectrum of IT services.

Frequently asked questions

In our 30-minute initial consultation, you'll get all the information you need to decide whether it makes sense to take the next step with us.

If we both feel it's a good fit, we'll schedule an approximately one-hour strategy session. In this no-obligation strategy session, you'll gain comprehensive insight into our Red Teaming methods and how they can improve your company's cyber resilience. Afterward, you can decide whether to implement these strategies on your own or together with us. The value is guaranteed.

A note on expectations:

We can only take on a limited number of new clients and aim to build long-term sparring partnerships. Our primary goal is to determine upfront whether we can truly help you – specifically:

  • Is your organization ready to honestly identify and address weaknesses?
  • Are you open to intensive collaboration and employee training?
  • Are you interested in a long-term partnership to continuously improve your security posture?

We'll discuss these questions in the strategy session as well. 👍

If you're interested in offensive security! We don't just do Red Teaming – our core expertise – we also regularly perform penetration tests.

Yes, slashsec conducts Red Teaming, Penetration Testing and Physical Security Assessments across the entire DACH region – in Austria, Germany and Switzerland. Our headquarters are in Vienna, but we regularly work with clients in Munich, Frankfurt, Zurich, Berlin and other cities throughout the DACH region.

A pentest focuses on technical vulnerabilities in clearly defined systems. Red teaming services go further: as a full adversary simulation, they cover all attack vectors – phishing, physical security, social engineering and technical exploitation – under real conditions with active defenses. Red teaming tests people, processes and technology simultaneously. Learn more in our Security Blog.

Yes, Physical Security Assessments are one of our core services. We test physical protection measures such as locking systems, access cards, alarm systems and CCTV through realistic intrusion simulations – from tailgating and access card cloning to planting hardware implants. We conduct these tests in office buildings, data centres, production facilities and critical infrastructure across Austria, Germany and Switzerland.

Red Teaming Assessments aren't the right fit for every company. The following factors indicate whether a Red Teaming Assessment makes sense for your organization:

  • You already conduct regular penetration tests.
  • You've already implemented security monitoring – meaning you have visibility into your IT networks.
  • Your budget for a Red Teaming Assessment is at least €40,000.

If you can check these boxes, it's worth having a conversation about Red Teaming Assessments! 👍

No, we are a pure consulting firm with a clear focus, committed to remaining independent of vendor opinions and influence.