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.

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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

March 12, 2026

Hacking a Bluetooth Printer Server: GATT to UART Adapter?

This blog post describes the journey of how we discovered an interesting Bluetooth SoC within the Datong NP330, a Printer Server IoT device. Our initial goal was to reverse-engineer and analyze the Bluetooth controller that is included in the device. So we wanted to be able to dump the firmware or, if possible, get shell […]

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