The National Kidney Foundation Singapore scandal, also known as the NKF saga, NKF scandal, or NKF controversy, was a July 2005 scandal involving National Kidney Foundation Singapore (NKF) following the collapse of a defamation trial which it brought against Susan Long and Singapore Press Holdings (SPH). This sparked significant controversy, causing a massive backlash and fallout of donors to the charity; it then subsequently resulted in the resignation of chief executive officer T.T Durai and its board of directors.