Experian was sued by the Consumer Financial Protection Bureau, which accused the Costa Mesa-based credit bureau of failing to properly probe consumer disputes.

Experian, the credit reporting giant, let compliance slide when it came to addressing consumer complaints about incorrect data, the Consumer Financial Protection Bureau said in a lawsuit against the credit agency.

A top watchdog agency for consumer finance has accused the credit rating company Experian of failing to properly investigate consumer disputes. In an announcement Tuesday, the Consumer Financial Protection Bureau (CFPB) said it had sued the company for unlawfully failing to investigate consumers’ issues.