David, a network forensic investigator, is reviewing the firewall logs after the security team reports a potential security incident. The company has recently experienced unusual traffic patterns, especially from external sources, and the IT department is concerned that a targeted attack may be underway. While reviewing the firewall logs. David spots several denied inbound connection attempts from an unfamiliar IP address. These attempts seem to originate from outside the expected network range. The connection attempts are consistently denied by the firewall, but they are occurring at unusual times, which raises concerns.
Given the heightened state of alert, David must determine if these suspicious connection attempts are part of a broader intrusion attempt or simply harmless scanning activity. As he examines the log details, he considers several factors to help him assess the seriousness of the situation. Among the details in the firewall log, which one will provide the most critical information to help David determine if these denied attempts are part of a potential intrusion attempt?
Submit