This 2010 NSA presentation describes Project Camberdada, an attempt to subvert popular antivirus software by means of surveilling email traffic: see the Intercept article Popular Security Software Came Under Relentless NSA and GCHQ Attacks, 22 June 2015.

A technical liaison officer stationed in Norway describes his job working with the Norwegian Intelligence Service and the Finnish Intelligence Research Establishment. There have been numerous recent outages in communications between the NSA and NIS facilities, and upgrades will be implemented. Finland is a new signals intelligence partner, and the relationship is growing. 

This slide, taken from the NSA’s annual review of its cooperation with foreign partners, shows an expansion in the agency’s international relationships: see the book No Place To Hide, 13 May 2014.

An airborne communications intelligence collection system was provided to Finland through an NSA "accommodation buy" involving systems from Northrop Grumman and British Aerospace engineering. The system was installed on a Finnish spy plane; a test flight with NSA representatives came within 12 miles of the Russian border.