Contact

Call us for an assessment and an evaluation of your request without obligation!

Contact details

Frank Hissen

e-mail: hissen@hissenit.com

telephone: +49 6251 / 97 08 441

Office hours: Monday to Friday, 08:00-16:00 CET

E-mail Encryption

We recommend to use an encrypted e-mail as secure communication channel. We prefer to permanently encrypt the whole e-mail correspondence with you to protect your privacy:

• S/MIME Certificate: Frank Hissen (if needed: Certificate of the Hissen IT CA)
• PGP Key: Frank Hissen

Legal

Please check our Legal notice and our Privacy statement.