„The duel of the AI giants and its consequences for IT security“
Guest article for Connect Professional, 28.03.2025
„We take a holistic approach to minimizing cyber risks. Because only by combining technology and people can we develop sustainable new perspectives and make companies secure. “
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 are an independent consulting and auditing company for IT security and support companies in all matters relating to cyber resilience – always product-neutral, independent and from the perspective of a potential attacker. Over 400 projects in more than eight years in highly regulated industries are proof of our experience. Our expertise starts where technology providers, system houses or international consulting groups often reach their limits.
Our service portfolio includes penetration tests, red teaming, vulnerability analyses, phishing tests and awareness training. We also advise on information security, data protection and security concepts and can take on external ISB functions on request. We work exclusively with permanently employed experts, because security begins with trust.
What sets us apart: Reliability, commitment and a partnership of equals. We stand for Hanseatic values – and for designing IT security clearly, honestly and effectively.
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 - in-house only
Our team of full-time experts is GPEN and eCPPT certified. No subcontractors, 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
In-depth expert knowledge
Manual tests with maximum informative value – for decision templates that are understood.
Independent and product-neutral
We do not sell tools. Our advice is free from third-party interests – and 100% in the service of your security.
Industry understanding meets IT expertise
Whether healthcare, finance, banking, energy or KRITIS – 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 has been Managing Partner of KALWEIT ITS since May 2024. As Director HR & Operations, he is responsible for operations and personnel. With experience at Sharp, Philips and Cisco, he brings a breath of fresh air to consulting. His focus: strengthening cybersecurity in Germany.
Günther Paprocki
Managing Partner