DFN-CERT offers consulting and services for improved Internet security. In particular, the protection of computers and computer networks from attacks and the security of electronic communications are the main tasks of DFN-CERT Services GmbH. For this, DFN-CERT focuses security expertise in close cooperation with German and international computer emergency response teams (CERTs). This is where CERT advice and information from around the world comes together. DFN-CERT has extensive experience in building and operating scalable and efficient security infrastructures. This includes the operation of advanced certification authorities (CAs). In addition, DFN-CERT is involved in several research projects to develop and test new security technologies. We share our knowledge and experience in the form of expert advice, tutorials and workshops.
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Contact Information

Mail: cert@dfn-cert.de

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Phone: +49 40 8080 77-555

Opening hours

Monday – Thursday: 9.00 am – 5.00 pm
Friday: 9.00 am – 4.00 pm


+49 40 8080 77-556

Postal adress

DFN-CERT Services GmbH
Nagelsweg 41
D-20097 Hamburg