Welcome to Open Briefing
A CISO’s perspective on cybersecurity, AI, digital trust, and organizational resilience.
Thank you for joining Open Briefing.
This is the free membership tier of CISOsCISO — created for leaders, security professionals, and decision-makers who want to understand cybersecurity beyond tools, incidents, and compliance checklists.
Cybersecurity is no longer only a technical discipline. It has become a question of governance, trust, resilience, accountability, and strategic judgment.
Open Briefing is where that conversation begins.
What You Can Expect
As an Open Briefing member, you will receive selected public articles, essays, and reflections on the issues that shape modern security leadership.
The focus is not on daily news or generic awareness content.
The focus is on the deeper questions behind today’s security challenges:
- What happens when established risk assumptions no longer hold?
- How should CISOs think about AI, cloud, regulation, geopolitics, and organizational complexity?
- Where does compliance end — and real accountability begin?
- How can security leaders help organizations make better decisions under uncertainty?
Open Briefing is designed to give you a clear, thoughtful, and practical perspective on these questions.
Themes Covered
Open Briefing will regularly explore topics such as:
- Cybersecurity leadership and CISO accountability
- AI security, governance, and digital trust
- ISO/IEC 27001, ISMS maturity, and risk-based management
- Cloud security, sovereignty, and strategic dependencies
- Security culture and executive decision-making
- Regulatory pressure, resilience, and organizational responsibility
- The changing role of the CISO in complex international environments
The articles are written from a practitioner’s perspective — with the strategic lens of someone who has worked at the intersection of technology, governance, cybersecurity, and organizational reality for many years.
What This Tier Is — and What It Is Not
Open Briefing is the public entry point.
It gives you access to selected articles and perspectives that are meant to be shared, discussed, and reflected upon.
It is not a template library, an advisory service, or a full executive briefing product.
More detailed playbooks, governance notes, decision memos, risk formulations, and premium briefings may be reserved for paid membership tiers.
Open Briefing is where the signal starts.
Why This Exists
Many organizations have invested heavily in cybersecurity.
They have implemented modern platforms.
They have built security operations capabilities.
They have introduced policies, controls, audits, and certifications.
And yet, many still struggle with the same fundamental problem:
Security is often treated as a technical function, while the real risks emerge from unclear ownership, weak governance, poor decision-making, fragmented accountability, and assumptions that are no longer valid.
CISOsCISO was created to address exactly that gap.
Not by simplifying cybersecurity into slogans.
But by asking better questions.
A Personal Note
My name is Eckhart Mehler.
I am an information security leader, writer, and advisor with more than three decades of experience in technology, cybersecurity, governance, and digital transformation.
This site is my personal professional space for sharing reflections, analysis, and practical thinking on the future of cybersecurity leadership.
The views expressed here are my own.
Start Here
As an Open Briefing member, you are invited to read, reflect, and engage with the ideas published here.
The best starting point is simple:
Read one article not as a piece of content, but as a leadership question.
Ask yourself:
What assumption in my organization might already be outdated?
That is where meaningful cybersecurity leadership begins.
Welcome to Open Briefing
Thank you for being here.
CISOsCISO is for those who believe that cybersecurity leadership is not only about protecting systems — but about helping organizations remain trustworthy, resilient, and capable of making responsible decisions in a changing world.