The FBI arrested a former software engineer from Seattle on charges of computer fraud and abuse after she accessed Capital One Financial Corp. data through a misconfigured web application firewall and stole Social Security numbers, names, birth dates, bank account numbers and other personal information on more than 100 million people.

Paige A. Thompson, 33, posted on GitHub about the hack, which occurred between March 12 and July 17. Another GitHub user contacted Capital One and after the financial company confirmed the intrusion and theft, it alerted the FBI on July 19.

“Capital One quickly alerted law enforcement to the data theft -- allowing the FBI to trace the intrusion,” U.S. Attorney Brian T. Moran said in a release.  “I commend our law enforcement partners who are doing all they can to determine the status of the data and secure it.”

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