Abstract: The subject matter discloses a system for analyzing a large-scaled file downloaded to a user's computerized device in segments that comprises a detection module for reviewing at least a portion of the large-scaled file and detects new segments added to the large-scaled file since a previous review of the large-scaled file. The system also comprises a triggering module for triggering the detection module and an analyzing module for analyzing at least the text of the at least one new segment detected by the detection module.