Coinbase, a publicly traded cryptocurrency trading exchange based in the United States, agreed to pay a $50 million fine after financial regulators found that it let customers open accounts without conducting sufficient background checks, in violation of anti-money-laundering laws.

The settlement with the New York State Department of Financial Services, announced Wednesday, will also require Coinbase to invest $50 million to bolster its compliance program, which is supposed to prevent drug traffickers, sellers of child pornography and other potential lawbreakers from opening accounts with the exchange.

The compliance problems at Coinbase were first detected during a routine examination in 2020 after the exchange secured a license to operate in New York in 2017, regulators said. They found problems with the exchange’s anti-money-laundering controls going as far back as 2018.

The settlement, which says Coinbase is still moving too slowly in its efforts to review its older accounts for suspicious features, will require the exchange to work with the monitor for at least another year as it puts in place systems to improve its compliance operation. New York regulators did not identify the monitor.