Joichi Ito, the director of the M.I.T. Media Lab, resigned on Saturday, one day after an article in The New Yorker reported the lab hid its financial relationship with the disgraced financier Jeffrey Epstein.

According to the report, Epstein gave hundreds of thousands of dollars to the lab, and solicited millions from a list of other wealthy donors. The lab sought to conceal these financial ties after Epstein pleaded guilty to solicitation of prostitution from a minor in 2008, The New Yorker reported. Epstein was facing federal sex trafficking charges when he committed suicide in prison in July.

The New Yorker reports:

"The effort to conceal the lab's contact with Epstein was so widely known that some staff in the office of the lab's director, Joi Ito, referred to Epstein as Voldemort or 'he who must not be named.'"

"After giving the matter a great deal of thought over the past several days and weeks, I think that it is best that I resign as director of the media lab and as a professor and employee of the Institute, effective immediately," Ito wrote in an email to the provost of M.I.T., Martin A. Schmidt.

Ito also stepped down Saturday from The New York Times Company Board of Directors.

Earlier this week, Ito acknowledged taking more than $500,000 from Epstein for the Media Lab, in addition to $1.2 million from Epstein for investment funds under Ito's control.

In a letter to the school, M.I.T.'s President, L. Rafael Reif, wrote, "The New Yorker published an article that contains deeply disturbing allegations about the engagement between individuals at the Media Lab and Jeffrey Epstein."

Reif said the allegations demand an "immediate, thorough and independent investigation," adding that he asked the school's general counsel to engage a prominent law firm to "design and conduct this process."

"We are actively assessing how best to improve our policies, processes and procedures to fully reflect M.I.T.'s values and prevent such mistakes in the future," Reif wrote. "Our internal review process continues, and what we learn from it will inform the path ahead."

Ito sits on other boards, including the John S. and James L. Knight Foundation and the John D. and Catherine T. MacArthur Foundation. He was named director of the M.I.T. Media Lab in 2011.

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