Oklahoma City is using technology that watches for signs of any hacker activity on its municipal government network. City managers can be immediately informed electronically about misbehavior. The Prism SIEM client software “keeps track of all the events on the machine, log-in and log-out times” SIEM can also keep track of whether certain records are changed or if someone gets dropped or added, an alert is sent out right away. It’s a powerful security tool, but there are some limitations with Prism’s offering.”]