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Web Bug

nounverified·updated May 9, 2026

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.

polysemousMWENISTIR 7298: Glossary of Key Information Security Terms, Revision 2

Senses

NISTIR 7298: Glossary of Key Information Security Terms, Revision 2

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.

Classifications

Entity Type

Threat85%llm-generatedllm:claude-haiku-4-5
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Sensitivity

Regulated75%llm-generatedllm:claude-haiku-4-5
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Information Class

Pii90%llm-generatedllm:claude-haiku-4-5
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Variants

plural
Web Bugs
possessive
Web Bug's
pluralpossessive
Web Bugs'