Presented by Jill Joline Myers, Western Illinois University and Leaunda S. Hemphill, University of Illinois at Urbana-Champaign
Educational examples of metadata:
- ID3 tags in MP3s
- Word document authorship information
- Revision history in wikis, Word
- Page view/access date/time
Patterns in metadata are highly indicitative of an individual--e.g. telephone calling patterns are largely identical for a person, even if the person changes phone numbers.
Metadata is usually automatically generated by the application.
Delete does not necessarily mean gone.
Types of metadata:
- Substantive (types of content changes made)
- System-based (info created by the user)
- Embedded (appears in files, like graphics, links, etc.)
Exposure of metadata may violate confidentiality.
Several examples of the risks associated with metadata, namely in the realm of crime, e.g. a photo sent out via Twitter from a smartphone which included precise lat/long of where the pic was taken, making predators aware of the precise location of a potential target.
"The benefits of metadata far outweigh the risks of metadata. However, we must become educated about metadata and ensure any risk-inducing metadata is not shared publicly.
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