Summary

No. The summary is somewhat of a vanity feature, showing stats about how the plugin has protected you since installing it, or since the last time you cleared the summary.

Its purpose isn’t for logging/investigation. The actual log is what you’ll want to check for the past day or several days of activities (depending on how busy your site is).

Anything beyond that, weeks, or even months back, you’ll want to check your server logs, which you might be able to access from your hosting control panel or directly via FTP or command line.