The invention discloses a mail anti-leakage detection
system and method based on a large
language model, and relates to the technical field of
information security, and the
system comprises a collection module which is used for obtaining a to-be-detected target mail, and the to-be-detected target mail comprises a mail header, a mail body, an attachment and related
metadata; the preprocessing module is used for preprocessing the target mail; the
large model analysis module is used for performing deep semantic analysis, including semantic understanding, sensitive entity recognition, communication intention recognition and context association analysis, on the preprocessed target mail based on a large
language model; the
risk assessment module is used for determining the
risk level of the target mail based on the
large model analysis result; and the
processing execution module is used for executing corresponding
processing operation according to the
risk level of the target mail and the
processing instruction. According to the method, the recognition accuracy of the mail anti-leakage
system on complex semantic sensitive information is improved, the detection capability on multiple types of attachments is enhanced, dynamic
risk assessment is realized, and the
false alarm rate and the missing report rate are reduced.