Assertion: macro virus | /r/HasProperty | spread in application files
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: Preventing macro viruses Since macro viruses are usually spread in application files that have been shared across the internet by email, especially in phishing email, macro virus defenses include strategies for scanning inbound email attachments, preventing users from opening dubious files and preventing macros from running at all when documents are opened.