MediaSentry
Open-knowledge reference entry

MediaSentry was a United States company that provided services to the music recording, motion picture, television, and software industries for locating and identifying IP addresses that are engaged in the use of online networks to share material in a manner said organizations claim is in violation of copyright. Their most notable customers were several trade associations including the Motion Picture Association of America and International Federation of the Phonographic Industry.
The company provided several services for this purpose, such as monitoring popular forums for copyright infringement, aid in litigation, early leak detection, and the distribution of decoy files. MediaSentry also monitored auction sites such as eBay for unauthorized distribution of software and other property.
History
On 1 February 2001 MediaSentry was founded by Aaron Fessler in Morristown, New Jersey.
On 13 June 2005 MediaSentry was acquired by SafeNet. SafeNet sold the MediaSentry division to Artistdirect in April 2009.
In late 2007 the University of Oregon, represented by Oregon Attorney General Hardy Myers, refused to provide information on its students to the RIAA, questioning the tactics used by MediaSentry in one of its investigations. The next year Central Michigan University accused MediaSentry of violating its students' privacy after the company ignored a ruling that it was illegally operating without a private investigator's license.
In January 2009 the RIAA canceled their usage of MediaSentry for undisclosed reasons.
This brief starts where responsible research should: with the source description of “MediaSentry” as open-knowledge reference entry. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the general reference register because the source frames it as open-knowledge reference entry. Its deeper value depends on whether names, dates, institutions and citations support that framing.
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 May 30, 2026. The linked authority identifier is Q6805414. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2001, 2005, 2009 and 2007.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. 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
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “MediaSentry”, its source revision and the description used here.
- Expand the search: follow MediaSentry primary sources, MediaSentry archive and MediaSentry 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
- Which source most directly establishes the central claim about “MediaSentry”?
- Which cited source is closest to the event, object or claim?
- What terminology or title could unlock a more precise catalogue search?
Search terms from this dossier
This entry incorporates text from “MediaSentry” 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.