1. An apparatus for associating an event log entry with the rule that triggered the creation of said event log entry, said apparatus comprising: an event handling device for applying a plurality of rules; an event log, communicatively coupled to said event handling device, said event log comprising a plurality of log entries; and a hash value appender coupled to said device, for appending a hash value to one of said plurality of log entries, wherein when said device performs an application of one of said plurality of rules, an entry is created in said event log, and said hash value generator appends to said entry a first unique hash value corresponding to said one of said plurality of rules.