JPMorgan Chase is increasing its efforts to diversify its work force and customer base after a Dec. 11 New York Times report showed a black customer and a black employee each struggling to gain access to the same opportunities as their white peers at the country’s largest bank.

In a memo to employees on Tuesday, Gordon Smith and Daniel Pinto, JPMorgan’s acting co-chief executive officers, said the bank was making diversity training mandatory for all employees and would pay more attention to employee complaints. They said the bank would expand the recruiting team dedicated to hiring people of color, make a greater effort to hire vendors run by minorities and work harder to provide customers with access to its full range of products.

“We’ve identified a number of areas that, with enhanced, scaled or new programming or processes, would serve to improve our culture in important ways,” the executives wrote.

In the Times report, a financial adviser recorded his boss disparaging a black customer as being “from Section 8” — a reference to public housing — and saying that she did not deserve to be in the bank’s program for elite customers. Another black customer, the former National Football League player Jimmy Kennedy, struggled for months to get access to a package of perks for wealthy clients, a delay that an employee told him was connected to his race.