According to Bloomberg, the intruder obtained email addresses of about 5 million people as well as full names for a separate group of about 2 million, Robinhood said Monday in a statement. For some customers, even more personal data was exposed, including names, birth dates and ZIP codes of about 310 people, and more extensive information belonging to a group of about 10.

Robinhood Security Breach Exposes Data on Millions of Users
While the firm said it believes no Social Security, bank account or debit-card numbers were exposed during the Nov. 3 incident, nor that customers incurred financial losses one cannot help but wonder why some large corporations are so lax in their computer security, exposing their own customers to potential fraud.
Watch for an SEC or FINRA investigation into this compliance failure.
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