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Got a notice from The Bank of New York Mellon? Here’s what to do.

The Bank of New York Mellon told the Massachusetts Attorney General that people’s information was exposed. If you got a letter, work through the steps below.

Your checklist

  1. 1

    Keep the letter

    Save the notice from The Bank of New York Mellon and its envelope. The date you were told can matter for legal deadlines.

  2. 2

    Freeze your credit

    The filing does not list what was taken, so play it safe. A free freeze at Equifax, Experian and TransUnion stops new accounts being opened in your name.

  3. 3

    Change reused passwords

    Change any password you used with this company or reused elsewhere, and turn on two-factor sign-in.

  4. 4

    Get a free claim review

    Our legal team checks whether you can be paid for this breach. No fee unless you recover.

Step 4: free claim review

Tell us you got the The Bank of New York Mellon notice. An attorney, not a call center, reads it and tells you plainly whether you have a claim.

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About the The Bank of New York Mellon breach

Reported to
Massachusetts Attorney General
Date filed
June 10, 2025
People notified
Not stated
Cause in filing
Not stated

The Bank of New York Mellon stands as a cornerstone of the global financial architecture, operating as one of the world's largest custody banks, asset managers, and securities servicing institutions. Because of its central role in managing trillions of dollars in assets, retirement accounts, institutional investments, and complex financial transactions, the institution maintains a massive repository of highly sensitive personal and financial data. This includes detailed records for retail banking customers, corporate executives, institutional investors, and trust beneficiaries. The sheer volume and sensitivity of the information entrusted to the bank make it an extraordinarily high-value target for sophisticated cybercriminals seeking to exploit financial systems and consumer data. In 2025, The Bank of New York Mellon reported a significant security incident to the Massachusetts Attorney General, bringing to light vulnerabilities within its digital infrastructure or third-party vendor network. While exact technical forensics continue to emerge, data breaches affecting major financial institutions typically involve unauthorized access to internal databases, compromise of legacy systems, or supply chain vulnerabilities where trusted third-party service providers serve as an entry point for malicious actors. In the financial sector, these incidents often center around the exfiltration of confidential customer records, trust documents, and personally identifiable information stored across interconnected enterprise networks. The exposure resulting from this security incident threatens victims with severe, long-term risks. Compromised data sets typically include full legal names, Social Security numbers, financial account numbers, routing numbers, dates of birth, and detailed transaction histories. When malicious actors obtain this combination of financial and personal identifiers, victims face an immediate and elevated risk of financial account takeover, unauthorized wire transfers, fraudulent credit card applications, and complex identity theft. Unlike a simple password leak, the compromise of core financial and identity markers leaves individuals vulnerable to ongoing threats, forcing them to spend countless hours monitoring credit reports, freezing accounts, and attempting to undo fraudulent financial activities. As a federally regulated financial institution handling consumer wealth and private financial records, The Bank of New York Mellon was bound by stringent legal duties to safeguard this sensitive information. Under the Gramm-Leach-Bliley Act (GLBA), federal regulations, and Massachusetts state data protection laws, financial entities are legally mandated to maintain robust administrative, technical, and physical safeguards to protect customer nonpublic personal information. The occurrence of a widespread data breach strongly indicates a failure in these required security protocols, pointing to potential negligence in network monitoring, encryption standards, or vendor risk management. Receiving a data breach notification letter from The Bank of New York Mellon is more than just an inconvenience—it is a formal admission by the institution that it failed to keep your private data secure. Legally, the receipt of this letter establishes the foundational standing required to participate in a class action lawsuit against the company. Affected individuals do not need to wait until they suffer direct financial loss or outright identity theft to take legal action; the increased risk and exposure alone provide the basis for compensation. Our firm evaluates these cases on a contingency fee basis, meaning you pay nothing out of pocket, and we only collect a fee if we successfully recover compensation on your behalf.

Full ransomware checklist

The Bank of New York Mellon data breach questions

Is the The Bank of New York Mellon data breach letter legit or a scam?
A notice from The Bank of New York Mellon in the mail matches the breach The Bank of New York Mellon reported to the Massachusetts Attorney General on June 10, 2025. Check that the company name and dates in your letter match that filing. A real notice of data security incident won't ask for your password, Social Security number or a payment — if it does, contact The Bank of New York Mellon through a phone number or website you find yourself.
Did The Bank of New York Mellon offer free credit monitoring?
Check your letter from The Bank of New York Mellon. If free credit or identity monitoring is offered, the enrollment code and deadline are printed in the notice itself. Signing up doesn't waive any legal rights you may have.
Is there a The Bank of New York Mellon data breach class action lawsuit?
Law firms often open an investigation after a breach notice like this one, and a class action lawsuit may follow. This page doesn't confirm that a lawsuit has been filed against The Bank of New York Mellon. You usually don't have to join a class action to be included — if a settlement is reached, class members are notified and can file a claim.
What should I do after getting the The Bank of New York Mellon data breach notice?
Keep the letter and the envelope, and note the date it arrived. Freeze your credit with Equifax, Experian and TransUnion, change any passwords the notice mentions, and sign up for any free credit monitoring the letter offers. Then check whether you may have a claim.
Do I need a The Bank of New York Mellon data breach lawyer or attorney?
An attorney can read your notice and tell you whether a claim makes sense. A case review here is free, and data breach cases are usually handled on contingency, so there is no upfront cost.
Can I sue The Bank of New York Mellon over the data breach?
It depends on what was exposed, the law in Massachusetts and your own state, and whether you've been harmed. Most people take part through a class action rather than suing alone. Keep your notification letter — it's the proof that connects you to the breach.
How much could a The Bank of New York Mellon data breach settlement or claim be worth?
There is no set amount, and no The Bank of New York Mellon settlement is confirmed here. In past data breach settlements, payments depended on what data was exposed and on documented losses — fraud, out-of-pocket costs and time spent dealing with the breach. Keep receipts and records; they're what damages claims are built on.

Other notices sent in Massachusetts

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