Goldman Sachs is going to court to demand that Google retroactively delete an e-mail it accidentally sent.

The breach occurred on June 23 and included “highly confidential brokerage account information,” Goldman said in a complaint filed last Friday in a New York state court in Manhattan.

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Goldman said the contractor meant to email her report, which contained the client data, to a “gs.com” account, but instead sent it to a similarly named, unrelated “gmail.com” account.

The bank said it has been unable to retrieve the report or get a response from the Gmail account owner. It said a member of Google’s “incident response team” reported on June 26 that the email cannot be deleted without a court order.

“Emergency relief is necessary to avoid the risk of inflicting a needless and massive privacy violation upon Goldman Sachs’ clients, and to avoid the risk of unnecessary reputational damage to Goldman Sachs,” the bank said.

“By contrast, Google faces little more than the minor inconvenience of intercepting a single email – an email that was indisputably sent in error,” it added.