Spyware
malware designed to secretly monitor activity and collect information from digital devices without the user's knowledge
Spyware (a portmanteau for spying software) is any malware that aims to gather information about a person or organization and send it to another entity in a way that harms the user by violating their privacy, endangering their device's security, or other means. This behavior may be present in other malware and in legitimate software. Websites may engage in spyware behaviors like web tracking. Hardware devices may also be affected.
Spyware is frequently associated with advertising and involves many of the same issues. Because these behaviors are so common, and can have non-harmful uses, providing a precise definition of spyware is a difficult task.
History
As personal computers and broadband connections became more common, the use of the internet for e-commerce transactions rose. Early retailers included book dealer Amazon.com and CD retailer CDNOW.com, which both were founded in 1994. As competition over customers intensified, some e-commerce companies turned to questionable methods to entice customers into completing transactions with them.
The first recorded use of the term spyware occurred on October 16, 1995, in a Usenet post that poked fun at Microsoft's business model.
The public source identifies “Spyware” as malware designed to secretly monitor activity and collect information from digital devices without the user's knowledge. This brief keeps that definition visible, then builds a research path around Spyware, malware and designed.
Why this record matters
A short description can identify a subject without explaining its stakes. For “Spyware”, the useful work is to connect “malware designed to secretly monitor activity and collect information from digital devices without the user's knowledge” to the records capable of establishing context and consequence.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 3, 2026. The linked authority identifier is Q14644. The Library of Congress control number is sh2005000096. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1994 and 1995.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
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The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Spyware”, its source revision and the description used here.
- Expand the search: follow Spyware primary sources, Spyware archive and Spyware research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
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Search terms from this dossier
This entry incorporates text from “Spyware” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.