The company says there's "no evidence" the hack compromised account numbers, passwords, user IDs, date of birth or SSN's, customers' money is safe BUT names addresses, phone numbers and email addresses were compromised.

The magnitude of the data breach eclipses previous estimates that about one million customer accounts were affected. The 76+ million households affected may rank as the largest corporate data breach/hack attack ever discovered. .

Below is the text of Oct. 2 JPMorgan Chase & Co. "8K" filing with the Securities and Exchange Commission

[Chase 8K filing text] On October 2, 2014, JPMorgan Chase & Co. ("JPMorgan Chase" or the "Firm") updated information for its customers, on its Chase.com and JPMorganOnline websites and on the Chase and J.P. Morgan mobile applications, about the previously disclosed cyberattack against the Firm. The Firm disclosed that:

• User contact information -- name, address, phone number and email address -- and internal JPMorgan Chase information relating to such users have been compromised.

• The compromised data impacts approximately 76 million households and 7 million small businesses.

• However, there is no evidence that account information for such affected customers -- account numbers, passwords, user IDs, dates of birth or Social Security numbers -- was compromised during this attack.

• As of such date, the Firm continues not to have seen any unusual customer fraud related to this incident.

• JPMorgan Chase customers are not liable for unauthorized transactions on their account that they promptly alert the Firm to.

The Firm continues to vigilantly monitor the situation and is continuing to investigate the matter. In addition, the Firm is fully cooperating with government agencies in connection with their investigations.

This Current Report on Form 8-K contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements are based on the current beliefs and expectations of JPMorgan Chase & Co.’s management and are subject to significant risks and uncertainties. Actual results may differ from those set forth in the forward-looking statements. Factors that could cause JPMorgan Chase and Co.’s actual results to differ materially from those described in the forward-looking statements can be found in JPMorgan Chase & Co.’s Annual Report on Form 10-K for the year ended December 31, 2013, and Quarterly Reports on Form 10-Q for the quarters ended March 31, 2014 and June 30, 2014, which have been filed with the Securities and Exchange Commission and are available on JPMorgan Chase’s website (http://investor.shareholder.com/jpmorganchase and on the Securities and Exchange Commission’s website ( www.sec.gov ). JPMorgan Chase & Co. does not undertake to update the forward-looking statements to reflect the impact of circumstances or events that may arise after the date of the forward-looking statements.

On the Chase consumer website, the firm includes a link to "Important Update on Cyber Security" which states:

[Chase customer website text] We want to update you further on the cyber attack against our company. After extensive review, here is what our forensic investigation has found to date.

Here' what you should know now:

There is no evidence that your account numbers, passwords, user IDs, date of birth or Social Security number were compromised during this attack.

• However, your contact information -- name, address, phone number and email address -- was compromised.

Your money at JPMorgan Chase is safe:

• Unlike recent attacks on retailers, we have seen no unusual fraud activity related to this incident.

• Importantly, you are not liable for any unauthorized transaction on your account that you promptly alert us to.

We are very sorry that this happened and for any uncertainty this may cause you. We don't believe that you need to change your password or account information. Click here for answers to questions you might have. As always, we recommend you use care with your accounts and information, as we describe in our Security Center (Link to Security Center).

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Attacks like these are frustrating. There are always lessons to be learned, and we will learn from this one and use that knowledge to make our defenses even stronger.