Officials say cross-border networks, crypto financing and operational secrecy make IS-K a more complex security challenge ISLAMABAD: Pakistani security agencies have assessed the militant Islamic State-Khorasan (IS-K) as a more entrenched and operationally sophisticated threat than the banned Tehreek-i-Taliban Pakistan (TTP) following investigations into the Feb. 6 bombing at an Islamabad Imam Bargah. According to […]