The exterior of HSBC's headquarters is pictured in east London on June 9, 2015. 

Scandal-hit bank HSBC said today it would cut its global headcount by up to 50,000 as part of a restructuring that entails its withdrawal from Brazil and Turkey, while it also mulls abandoning London as its HQ.   

AFP PHOTO / JUSTIN TALLISJUSTIN TALLIS/AFP/Getty Images