US regulators are sending some of the biggest global banks verbal warnings as they crack down on the firms’ poor grasp of their own weaknesses, and push for rapid improvements in risk assessment, according to two sources familiar with the matter.

The firms who received the warnings are among the world’s largest banks, but the sources declined to name firms because the enforcement actions are not public.

Banks are responding to the stepped-up pressure by hiring people with experience in data governance and analytics. One source said recruitment calls have spiked in the last 18 months as regulators have issued more non-public enforcement actions.

The world’s largest banks have only grown bigger since the 2007-2009 financial crisis and are struggling to get a handle on the full scope of their trading activities and asset quality.

The result is that regulators and the industry they oversee cannot confidently assess big-picture threats to the US financial system. – (Reuter)