The moves stem from an outside review that followed complaints from Goldman Sachs that Bloomberg journalists were accessing client log-in activity on the company's trading information terminals.
In response, Bloomberg turned off its journalists' special access, limiting it to what clients can see themselves. It called the previous access a mistake.
Bloomberg said Wednesday that it will continue to restrict journalist access to client data.
It's also boosting its data security and corporate compliance controls, giving more oversight responsibilities to its audit committee and creating a centralized team that will oversee the granting of access to restricted data.