Huge Data Leak at Largest U.S. Bond Insurer
On Monday, KrebsOnSecurity notified MBIA Inc. — the nation’s largest bond insurer — that a misconfiguration in a company Web server had exposed countless customer account numbers, balances and other sensitive data. Much of the information had been indexed by search engines, including a page listing administrative credentials that attackers could use to access data that wasn’t already accessible via a simple Web search.
MBIA Inc., based in Purchase, N.Y., is a public holding company that offers municipal bond insurance and investment management products. According to the firm’s Wiki page, MBIA, formerly known as the Municipal Bond Insurance Association, was formed in 1973 to diversify the holdings of several insurance companies, including Aetna, Fireman’s Fund, Travelers, Cigna and Continental.
Notified about the breach, the company quickly disabled the vulnerable site — mbiaweb.com. This Web property contained customer data from Cutwater Asset Management, a fixed-income unit of MBIA that is slated to be acquired by BNY Mellon Corp.