The Five Eyes surveillance alliance explained
Australia, the US, UK, Canada, and New Zealand share intelligence. If you live in any of these countries, your data is in the pool.
Updated 2026-04-11
What is Five Eyes?
Five Eyes (FVEY) is a signals intelligence alliance between Australia, Canada, New Zealand, the United Kingdom, and the United States. Originally formed after World War II, it formalises the sharing of intercepted communications between these five nations' intelligence agencies: the ASD (AU), CSIS/CSE (CA), GCSB (NZ), GCHQ (UK), and NSA (US).
Why it matters for your privacy
If you live in a Five Eyes country, intelligence agencies from all five nations may potentially access data about you — even if your own country's laws would restrict what the domestic agency could do directly. This "laundering" of surveillance through allied nations is a known workaround. Whistleblower Edward Snowden's 2013 disclosures confirmed the scope of cross-border data sharing between these agencies.
Nine Eyes and Fourteen Eyes
The alliance has informal extensions. Nine Eyes adds Denmark, France, the Netherlands, and Norway. Fourteen Eyes further adds Belgium, Germany, Italy, Spain, and Sweden. These broader groups share intelligence at varying levels of formality and trust. Germany and France, for example, have GDPR protections for their citizens but still participate in intelligence-sharing frameworks.
What you can do about it
You cannot opt out of the Five Eyes alliance, but you can limit the data available to be shared. End-to-end encrypted communication, a trustworthy VPN (ideally based outside Five Eyes), and an understanding of what metadata reveals are your main tools. Jurisdiction matters when choosing privacy services — a VPN provider based in Switzerland or Iceland operates under different legal obligations than one based in the US or UK.
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