Web Bug

nouncandidate·updated May 9, 2026

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Malicious code, invisible to a user, placed on Web sites in such a way that it allows third parties to track use of Web servers and collect information about the user, including IP address, host name, browser type and version, operating system name and version, and Web browser cookie.

Framework senses

4 senses across 3 frameworks

NISTIR 7298: Glossary of Key Information Security Terms, Revision 22 sensesview framework →

§1: A tiny image, invisible to a user, placed on Web pages in such a way to enable third parties to track use of Web servers and collect information about the user, including IP address, host name, browser type and version, operating system name and version, and cookies.
§2 · sense_2_pending_review: Malicious code, invisible to a user, placed on Web sites in such a way that it allows third parties to track use of Web servers and collect information about the user, including IP address, host name, browser type and version, operating system name and version, and Web browser cookie.

CNSSI-4009 (Glossary of Information Assurance Terms)1 senseview framework →

§1: Malicious code, invisible to a user, placed on Web sites in such a way that it allows third parties to track use of Web servers and collect information about the user, including IP address, host name, browser type and version, operating system name and version, and Web browser cookie.

NIST SP 800-281 senseview framework →

§1: A tiny image, invisible to a user, placed on Web pages in such a way to enable third parties to track use of Web servers and collect information about the user, including IP address, host name, browser type and version, operating system name and version, and cookies.