What does it mean when the system.log files up with messages of the form:
May 12 19:50:32 Michaels-iMac SophosWebIntelligence[448]: assertion failed: 13F1077: libxpc.dylib + 26863 [AB40CD57-F454-3FD4-B415-63B3C0D5C624]: 0x13
Sophos Anti-Virus version 9.2.4, threat detection engine 3.58.1, thret data 5.14, on OS X 10.9.5.
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