Hackers had access to Stack Overflow systems for nearly one week before the attack was detected and some user data was exposed after all, the company has admitted.
Stack Overflow informed users on May 16 that it had detected unauthorized access to production systems over the previous weekend. The company initially said it had found no evidence that customer or user data was compromised.
In an update posted on May 17, Stack Overflow VP of Engineering Mary Ferguson revealed that the initial intrusion apparently occurred on May 5. ..