Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Visual and Verbal Communication (hierarchy name)
4. Information Forms (hierarchy name)
5. information forms (objects)
6. document genres
7. [documents by form]
8. electronic documents
9. software
10. programs (computer)
11. applications

Anotations

Scope note:

Software that, on a broad level, protects computer networks, personal computers, and other devices such as smartphones, from intrusion by outsiders. Some examples of this protection might be antivirus software, firewall software, encryption software, or VPN software.