IT Sicherheit – frischer Wind
IT security – a breath of fresh air
Sécurité informatique – un vent de fraîcheur
Seguridad informática – un soplo de aire fresco
Hacker sind kreativ und finden immer neue Wege in Unternehmen einzudringen. Um Angreifern weiterhin einen Schritt voraus zu sein, braucht es immer wieder neue Ideen.

KALWEIT ITS – Wir bringen frischen Wind.
Hackers are creative and always find new ways to penetrate companies. To stay one step ahead of attackers, new ideas are always needed.

KALWEIT ITS – We bring a breath of fresh air.
Les pirates informatiques sont créatifs et trouvent toujours de nouveaux moyens de s'introduire dans les entreprises. Pour garder une longueur d'avance sur les attaquants, il faut sans cesse de nouvelles idées.

KALWEIT ITS – Nous apportons un vent de fraîcheur.
Los hackers son creativos y siempre encuentran nuevas formas de penetrar en las empresas. Para estar un paso por delante de los atacantes, siempre se necesitan nuevas ideas.

KALWEIT ITS – Traemos un soplo de aire fresco.



Our deep ties with the Hanseatic city of Hamburg are also linked to Hanseatic merchant tradition. In this way, our customers enjoy close cooperation at eye level – with the utmost discretion, anonymity and strong trust. However, our anonymized references provide insight into our diversified customer base:


Banking, Finance & Insurance: International, Employees < 3000, ECB- and/or BaFin-regulated financial companies

Construction, Industry & Energy Sector: Company Sales > 10 billion , Employees > 10,000

Retail: Sales of the company > 50 billion, Employees > 100,000

Publishing: Company sales > 1 billion


Among them, the following project activities:

  • Perimeter testing of networks and their services
  • Pentest web applications
  • API Pentest
  • Log4j vulnerability scan
  • Pentest of a self-developed ActiveDirectory software
  • MobileApp Pentesting: iOS and Android
  • IT forensic measures for potentially compromised systems
  • Internal pentests: Active Directory, Kerberos, Internal Services


as well as many others.

Various retail and private banks / finance / insurance companies

  • Red Teaming penetration test according to Tiber-EU (Bank)
  • Penetration test according to OWASP and Cyber Kill Chain (SDAX company)

Software company

  • Penetration test (internationally operating company)
  • Consulting activities on DevSecOps topics


  • Cyber Incident Simulation for Europe IT
  • Lecture activities
  • Penetration test
  • Red Teaming Concept (Draft)

International chemical group

  • Penetration testing
  • static code analyses


  • Consulting activities for the IT security strategy EMEA
  • Penetration test
  • IT Audit


  • Penetration test mobile apps (over 4 million customer data)
  • Penetration test (medium-sized company, globally active, medical products)

Energy beings

  • Consulting activities & penetration testing (startup)
  • Consulting activities on DevSecOps / MVP project support (4000-10,000 employees)

Consumer Goods

  • Red Teaming penetration test for the entire group (listed)

Public sector

  • Penetration testing

Maritime essence

  • Penetration testing

International system gastronomy

  • Red Teaming Penetration Test
  • Consulting activities
  • IT Audit

International construction

  • RFP Accompaniment & Consulting
  • Penetration test (Europe, USA)

Food additives industry

  • Incident Response (companies with less than 100 employees)
  • IT emergency manual according to BSI 100-4
  • Incident Response (medium-sized company)

Miscellaneous food retail

  • Penetration testing
  • Mass penetration testing
  • DevSecOps project support & consulting
  • Incident Response