The intelligence agencies of the US, UK, Canada, Australia and New Zealand have collaborated extensively since WWII (this is the so called "Five Eyes"[1]) and o

The intelligence agencies of the US, UK, Canada, Australia and New Zealand have collaborated extensively since WWII (this is the so called "Five Eyes"[1]) and of course the NATO powers coordinate defense as well as part of that organization. Edit to add: I mention the five eyes because cryptography (and cybersecurity) tend to fall into the purview of the signals intelligence agencies in government, so that would be NSA in the US, GCHQ in the UK etc. They collaborate under this arrangement. [1] https://ukdefencejournal.org.uk/the-five-eyes-the-intelligence-alliance-of-the-anglosphere/ https://ukdefencejournal.org.uk/the-five-eyes-the-intelligen...