This appears to be what OP was referring to (a cyber espionage sub-unit of the N... | Hacker News

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Tushon on Dec 15, 2016 | parent | context | favorite | on: Yahoo installed a backdoor for the NSA behind the ...

This appears to be what OP was referring to (a cyber espionage sub-unit of the NSA):

https://en.wikipedia.org/wiki/Tailored_Access_Operations

Bartweiss provided a better, short summary.

__derek__ on Dec 15, 2016 [–]

Thanks! In hindsight, I should have searched for 'tao nsa' rather than just 'tao'.

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