Biggest Banks Said to Overhaul FX Trading After Scandals

The world’s biggest banks are overhauling how they trade currencies to regain the trust of customers and preempt regulators’ efforts to force changes on an industry tarnished by allegations of manipulation.

Barclays Plc, Deutsche Bank AG, Goldman Sachs Group Inc., Royal Bank of Scotland Group Plc and UBS AG, which together account for 43 percent of foreign-exchange trading by banks, are introducing measures to make it harder for dealers to profit from confidential customer information and take advantage of clients in the largely unregulated $5.3 trillion-a-day currency market, according to people with knowledge of the changes.