„The duel of the AI giants and its consequences for IT security“
Guest article for Connect Professional, 28.03.2025
„For over nine years, we have been a reliable partner for corporations and SMEs in all IT security matters. Our biggest advantage: we know how attackers think - because we act as attackers ourselves. “
Selected press reports
„MalRDP - New threat via Remote Desktop Protocol
How attackers get into the system in two seconds“
Guest article for SecurityInsider, 07.07.2025
„Germany's youngest professional hacker: "I've always found it interesting to find the bugs in the system“
Handelsblatt, 24.11.2020
About us
"We stand for independent, quality-oriented IT security that works in everyday life and is effective in an emergency."
We are an independent consulting and auditing company for IT security with over nine years of experience and more than 400 projects in highly regulated industries. Our expertise begins where technology providers, large system houses or international consulting groups often reach their limits.
Our supreme discipline is manual IT security testing. As a result, we know in detail how real attackers proceed, how they think, plan and actually exploit vulnerabilities. We translate this knowledge into effective, practical security measures. In this way, we combine the perspective of attackers with the operational realities of highly regulated companies. This results in solutions that are technically sound, regulatory viable and can be implemented in everyday life.
For corporations, highly regulated industries and Critical Infrastructures, we provide manual security audits and IT security consulting wherever it is important to understand how attackers really operate. We are a long-term sparring partner for SMEs and take responsibility for the entire IT security situation of our customers. This means that we take care of all security-related issues and ensure that IT security is stable and reliable.
Known from
The DNA of KALWEIT ITS
Vulnerability management from a single source
Whether penetration tests, red teaming, consulting, darknet research, IT forensics, training or phishing tests – our team has expert status.
Certified excellence
Our company is ISO/IEC27001 certified and our exclusively permanent experts have recognized certifications in the field of IT security and penetration testing. No sub-contractors, no freelancers – no compromises.
We think like attackers. And act like partners.
We are passionate about IT security. We test thoroughly, document clearly and continuously develop ourselves further.
Why companies rely on KALWEIT ITS
Consulting approach
Effective cybersecurity is needs-based, understandable and practicable. Our expertise is based on the essentials: the attacker’s perspective.
Customer focus
We provide independent and product-neutral advice and are always available to you personally – without a hotline or ticket system.
Industry understanding meets IT expertise
Whether healthcare, finance, banking, energy or Critical Infrastructures – we know the regulatory requirements and operational realities of your industry.
Reliability, commitment and loyalty as partners
Supported by Hanseatic business values, we stand for reliability, honesty and loyalty as partners – so that IT security and trust go hand in hand.
Your contact persons
Security is a matter of trust. With us, you don't talk to a ticket system - you talk directly to experienced experts.
S. Philipp Kalweit is Director Strategy & Consulting with a focus on security awareness and offensive IT auditing. He has been advising SMEs and corporations for nine years, particularly in highly regulated industries. In 2019, he was honored by DIE ZEIT as “Hamburger of the Month” and included in the Forbes 30 under 30 DACH list.
S. Philipp Kalweit
Managing Partner
Dipl.-Wirtsch.-Ing. Günther Paprocki is Managing Partner of KALWEIT ITS. As Director HR & Operations, he is responsible for operations and personnel. With experience from previous positions at Sharp, Philips and Cisco, he brings a breath of fresh air to the consultancy. His focus: strengthening cybersecurity in Germany.
Günther Paprocki
Managing Partner