Cisco AnyConnect was overwhelming my Mac

Recently my Mac's battery life fell to about an hour. I repaired the problem, but didn't see it reported on the web, so I will post it here so Google can find it.

The Activity Monitor app showed acwebsecagent and ReportCrash using about 15% of the CPU. The Console app showed the messages

3/8/14 10:36:22.543 AM acwebsecagent[1049]: Config : The service only loads an obfuscated configuration file
3/8/14 10:36:22.543 AM acwebsecagent[1049]: ERROR : Failed to load Configuration file
3/8/14 10:36:23.516 AM acvpnagent[75]: 'acwebsecagent' service process , pid 1049, terminated
3/8/14 10:36:25.579 AM ReportCrash[1024]: Saved crash report for acwebsecagent[1052] version ??? to /Library/Logs/DiagnosticReports/acwebsecagent_2014-03-08-103625_....crash

The problem seemed to come from Cisco AnyConnect.

The fix was

sudo /opt/cisco/anyconnect/bin/websecurity_uninstall.sh

I don't know why it worked!