The National Security Bureau (NSB) is investigating suspected cyberattacks originating from China that targeted Democratic Progressive Party (DPP) Taipei mayoral candidate Puma Shen (沈伯洋), a top official said yesterday.“The bureau is doing all within its power to ensure the [Nov. 28] elections will. Add TT as Preferred Source The National Security Bureau (NSB) is investigating suspected cyberattacks originating from China that targeted Democratic Progressive Party (DPP) Taipei mayoral candidate Puma Shen (沈伯洋).