Timeline of Sony Data Theft:
http://www.shacknews.com/article/68330/timeline-sony-data-theft
http://www.shacknews.com/article/68330/timeline-sony-data-theft
April 4 (Monday) - Hacker group Anonymous targets Sony for denial of service attacks, in retaliation for Sony legal action against George Hotz (aka "GeoHot") and Graf_Chokolo
April 7 (Thursday) - Anonymous halts attacks, apologizes for inconveniencing users, and acknowledges diverse points of view within hacker group
April 17-19 (Sunday-Tuesday) - PlayStation Network and Sony Online Entertainment hacked, user data stolen
April 19 (Tuesday, 4:15 pm PDT) - Sony Network Entertainment America network team notices unauthorized activity due to unscheduled server reboots; team begins running logs to analyze data
April 20 (Wednesday, early afternoon) - Sony forms larger team to assist the investigation; network team discovers unauthorized intrusion and that unknown data had been transferred from the PlayStation Network; network team shuts down PSN; Sony retains a security and forensic consulting firm to assist in the investigation; Sony begins mirroring suspected servers
April 21 (Thursday) - Sony retains a second security and forensic consulting firm; Sony issues a statement suggesting the network could be down for "a day or two"
April 22 (Friday) - Sony Computer Entertainment America general counsel provides FBI with information about the intrusion; network team finishes mirroring 9 of the 10 suspected servers; Sony issues a statement admitting an "external intrusion"
April 23 (Saturday) - Network teams determine that sophisticated hackers deleted log files to hide activity within the network; Sony issues a statement regarding re-building the network infrastructure for better security
April 24 (Sunday) - Sony decides to retain a third forensic team to help determine the scope of the breach
April 25 (Monday) - Forensic teams are able to determine that user data had been stolen, but could not rule out whether credit card information had been accessed
April 26 (Tuesday) - Sony notifies public of data intrusion; Sony also notifies regulatory authorities in New Jersey, Maryland, and New Hampshire;
April 27 (Wednesday) - Sony meets with FBI regarding data intrusion; Sony notifies the regulatory authorities in Hawaii, Louisiana, Maine, Massachusetts, Missouri, New York, North Carolina, South Carolina, and Puerto Rico; Sony tells SOE users that their databases and servers are kept separate, and therefore safe
April 28 (Thursday) - Hacker groups claim to be selling credit card data; security analysts confirm the discussions are taking place, but cannot confirm the legitimacy of the list; one hacker claims to have tried selling to Sony, but Sony denies any knowledge of such a sale
April 30 (Saturday) - Sony holds a press conference in Tokyo, apologizing for the data theft and detailing the PSN Welcome Back program; Sony says that some services will resume in the coming week
May 1 (Sunday, afternoon) - Sony detects intrusion into Sony Online Entertainment, including a file titled "Anonymous" that reads "We are Legion"
May 2 (Monday, morning) Sony Online Entertainment servers taken offline, with a brief statement, "we have discovered an issue that warrants enough concern for us to take the service down effective immediately."
May 2 (Monday) - Sony receives Congressional inquiry; Sony issues a statement that 12,700 credit cards and 24.6 million accounts were compromised in SOE data theft
May 4 (Wednesday) - Sony's Kaz Hirai responds to Congressional inquiry, implicating Anonymous Group