We keep hearing it: global cybersecurity regulation is converging. Companies will soon face one unified standard instead of dozens. Compliance will become simpler. Costs will drop. This narrative is being sold as inevitable, the natural endpoint of a messy regulatory landscape. It deserves far more skepticism than it is getting.
The argument sounds rational. The EU tightens rules. The U.S. follows suit. Asia develops parallel frameworks. Eventually, the thinking goes, everyone realizes duplication is wasteful and settles on common ground. Regulators from different jurisdictions nod at conferences. Standards bodies publish guidelines. Companies exhale in relief.
But this story glosses over what actually happens when regulators with different constituencies, timelines, and political pressures try to coordinate.
Consider what we have seen instead: fragmentation. The EU's NIS2 directive. The U.S. critical infrastructure rules. Singapore's cybersecurity act. Australia's new frameworks. Each reflects genuine regional differences in threat perception, economic priorities, and cultural attitudes toward government oversight. These differences are not bugs in the system. They are features, reflecting legitimate disagreements about how to balance security, innovation, and privacy.
The harmonization narrative assumes these differences will erode. History suggests otherwise. Banking regulation looked like it might harmonize after the 2008 financial crisis. Two decades later, U.S. banks, European banks, and Chinese banks operate under fundamentally different frameworks. The Dodd-Frank Act and the Markets in Financial Instruments Directive were supposed to create global alignment. Instead, they created new friction points and workarounds. Financial institutions now operate with regulatory arbitrage in mind, not convergence.
Cybersecurity regulation is unlikely to be different. The conditions for real harmonization are not present. Regulators lack binding enforcement mechanisms across borders. There is no global cybersecurity authority, nor should there be one. Different countries have different threat models. A nation worried about state-sponsored attacks will regulate differently than one focused on ransomware. A country with a thriving tech sector will take different positions on liability and disclosure than one without. These are not problems to solve through more meetings. They are structural realities.
There is another issue being undersold: harmonization might sound good in the abstract, but the actual harmonized standard matters enormously. When regulators from different regions do coordinate, the result often reflects the most stringent position across all of them. Companies then face a de facto global compliance burden set by whoever demands the most. That may improve security in some cases. It may also slow innovation, raise barriers to entry for smaller firms, and benefit large incumbents who can absorb compliance costs. The "simplified" landscape can end up being more restrictive, not less.
Some recent regulatory moves hint at this dynamic. The EU's approach to technology regulation is becoming a de facto global standard, not because everyone agreed it was optimal, but because the EU market is large enough that companies comply with EU rules globally. That may be effective for the EU's stated goals. But let us be honest about what it is: regulatory dominance, not harmonization.
The real conversation should not be about convergence toward some mythical global standard. It should be about managing legitimate regulatory diversity. Companies need clearer mapping of which rules apply where. Regulators need better mechanisms for information sharing without requiring absolute alignment. Some light coordination on specific, narrow issues like threat intelligence sharing or incident reporting timelines might make sense. But the fantasy that dozens of sovereign regulators with different mandates will eventually adopt identical rules is not a vision to plan around. It is a distraction.
The cybersecurity regulation landscape will remain fragmented because the world is fragmented. Rather than waiting for inevitable harmonization, companies and policymakers should focus on making fragmentation more navigable. That is a harder conversation. It is also the honest one.