Deutsche Bank said to have lost logs sought in interest-rate rigging probe

Deutsche Bank is seeking to recover internal electronic chat transcripts that were left out of disclosures to regulators during a probe into interest-rate rigging, according to sources.

The lender told regulators in May that a software glitch caused one of its chat systems to fail to archive files as far back as 2005, according to the sources, who asked not to be identified because the recovery process is not complete.

The New York Department of Financial Services, the state’s banking regulator, is investigating the matter, one of the people said.