  Classical cybersecurity is often perceived as a rigid science discipline
filled with computer scientists and mathematicians. However, due to the rapid
pace of technology development and integration, new criminal enterprises, new
defense tactics, and the understanding of the human element, cybersecurity is
quickly beginning to encompass more than just computers. Cybersecurity experts
must broaden their perspectives beyond traditional disciplinary boundaries to
provide the best protection possible. They must start to practice
transdisciplinary cybersecurity. Taking influence from the Stakeholder Theory
in business ethics, this paper presents a framework to encourage
transdisciplinary thinking and assist experts in tackling the new challenges of
the modern day. The framework uses the simple Think, Plan, Do approach to
enable experts to develop their transdisciplinary thinking. The framework is
intended to be used as an evaluation tool for existing cybersecurity practices
or postures, as a development tool to engage with other disciplines to foster
learning and create new methods, and as a guidance tool to encourage new ways
of thinking about, perceiving, and executing cybersecurity practices. For each
of those intended uses, a use case is presented as an example to showcase how
the framework might be used. The ultimate goal of this paper is not the
framework but transdisciplinary thinking. By using the tool presented here and
developing their own transdisciplinary thinking, cybersecurity experts can be
better prepared to face cybersecurity's unique and complex challenges.
