Since 1972 the BfV is also concerned with activities of foreign nationals in Germany, especially extremists and terrorists who operate in the country or plan their activities there, such as the Kurdistan Workers' Party.
Sejak tahun 1972 BfV juga memperhatikan kegiatan warga negara asing di Jerman, terutama para ekstremis dan teroris yang beroperasi di dalam negeri atau rencana kegiatan mereka di sana, seperti Partai Pekerja Kurdistan.