The software maker also said that hackers had stolen part of the source code to Photoshop editing software that is widely used by professional photographers.
The company disclosed the breach on
Adobe also said that the hackers accessed an undisclosed number of Adobe IDs and encrypted passwords that were stored in a separate database. On Tuesday, it revealed that about 38 million records from that database were stolen.
Even though the company believes the stolen passwords were encrypted, the attackers may have been able to access them in plain text by one of several methods, including breaking the algorithm that Adobe used to scramble them, said
They could likely use those passwords to break into other accounts because many people use the same passwords for multiple accounts, he said.
"This is a treasure trove for future attacks," Carey said.
Yet Edell said she could not say whether stolen credit cards or passwords had been used to launch follow-on attacks against Adobe customers or conduct other types of cyber crimes.
"Our investigation is still ongoing," she said. "We anticipate the full investigation will take some time to complete."
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