In an after-action report released this week, Dallas information technology officials say the stolen credentials allowed hackers with the group Royal to...
Four months after Dallas announced the ransomware attack, officials have for the first time released a timeline of what happened and a list of what city systems were impacted. The city published the 31-page report sometime after Wednesday’s briefing to City Council. The release wasHackers accessed some of the most sensitive information stored by the city, including medical information, health insurance information, and Social Security numbers of Dallas employees, retirees and their relatives.
According to the after-action report, it took 50 minutes for the city to get its first alert of a cyberattack on May 3.By 5 a.m., city workers started procedures to try to reduce the attack. From 5:32 to 6 a.m., several servers were determined to have been impacted, including those involving the sanitation department.
The report says by 11:10 a.m., “critical public safety servers” were determined to have been infected by ransomware and the city began disconnecting servers to prevent it from spreading. Despite that, new servers were determined to become infected at 1:22 p.m.By 2:15 p.m., the city determined 173 servers have been impacted as well as several departments. About three hours later, at least one server was determined to have been reinfected.
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