A strong recovery by European banks faces a possible setback after BNP Paribas and ING warned on Thursday of a more challenging outlook and investors reappraised which lenders are most vulnerable as a boost from higher interest rates recedes. Shares in BNPP, which missed forecasts and pushed back a key profitability target, slid 8% in their biggest one-day drop since March, while Dutch bank ING's stock fell sharply as it forecast lower income for 2024. "The (euro zone) economy is in the process of slowing down," BNPP CEO Jean-Laurent Bonnafe said after reporting revenue falls ...