The names, addresses, phone numbers and “miscellaneous trading” information of potentially all of its 6 million retail and institutional customers have been compromised. Social Security numbers, account numbers and dates of birth, all of which were stored in the same hacked database, appear to have been left untouched. The intrusion was discovered during an internal investigation into stock-related spam being reported by TD Ameritrade customers. The company will start notifying all its customers via postal and e-mail over the next few days.”]