Initial consultation
Contact
Contact me if you would like to clarify the security of an application, a development process or a specific external requirement.
Best place to start
Send an enquiry using the contact form
For project enquiries, penetration tests, SDLC support or security training, the form is the quickest way to get started.
Are you planning a penetration test, need support in the secure development process or do you need to meet audit, insurance or customer project requirements? Briefly describe your initial situation to me. I will usually get back to you within 1-2 working days with an initial assessment of what makes sense to proceed.
In the contact form I record the concerns, the area affected, the reason, the desired period and a short description. Depending on your concerns, I ask for appropriate project details. You can optionally specify the company and telephone number.
I do not offer an end customer support hotline. If you suspect a safety-critical incident, initially only submit the necessary key data. I will then clarify with you whether and how I can support you.
Confidential enquiries
You can send me confidential information encrypted using OpenPGP. Before shipping, check the provided fingerprint: 09F7 F43A 066F 63A4 CEBA 61BC 6C0C 02E7 C37A 5473.
You can download the public OpenPGP key here: publickey-arbeit-siegbert-security.asc.
Availability
I will be available for new projects from October 2026. Inquiries and early appointments are already possible.
Direct contact options
Email and telephone
The contact form is the best place to start a project enquiry. For brief questions or confidential coordination, you can also use email or telephone.