An employee enters the headquarters of French bank Societe Generale, the country's second largest, at La Defense, west of Paris, in this August 11, 2011 file photo. French bank Societe Generale said on September 12, 2011 its sovereign debt exposure was manageable and it was to speed up asset disposals and deepen cost cuts, in a bid to reassure investors. However, shares in SocGen and domestic rivals slumped on Monday on deepening concerns about Greece, to which French banks are heavily exposed, and a possible credit ratings cut. REUTERS/John Schults/Files (FRANCE - Tags: BUSINESS)