We are ERNW – IT security specialists from Heidelberg

Since 2001, our focus has been on consulting
and testing in all areas of IT security

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Vision & Values

  • Independence

    ERNW is, in terms of technology, manufacturers and financing, an independent service provider. Projects, recommendation of measures or the highlighting of optimization potential is never influenced by contracts with certain manufacturers, bias against certain products or claims of external stakeholder.

  • Expertise

    The continued development of our ERNW team’s expertise is our highest value, and one that is fully supported by our company through continued education, research, and shared innovation.

  • Knowledge transfer

    We believe that shared knowledge empowers ourselves as a company, our customers, and the international IT security community in which we actively participate.


Our Mission

ERNW is an independent IT Security service provider based in Heidelberg, Germany.  Since its founding in 2001, our focus has been on consulting and testing in all areas of IT security, unallied from outside shareholders and a need to sell products. This independence and self-accountability drives us, as a company, to adhere to a higher standard of professional conduct and development.


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Latest ERNW News

May 06, 2021

Analysis of HSTS Caches of Different Browsers

The Reason I recently stumbled upon a strange behavior in my Firefox: I visited an HTTPS-enabled website that I had visited before and saw that my Firefox connected insecurely via HTTP. I found that strange because nowadays, most websites set the HSTS header, which is supposed to force the browser to connect via HTTPS. I […]

More on More ERNW related articles on our company blog