Computer Security Resource Center

Computer Security Resource Center

Computer Security
Resource Center

Glossary

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Completely Automated Public Turing Test To Tell Computers And Humans Apart (CAPTCHA)

Acronym(s):
CAPTCHA
Definition(s):

  An interactive feature added to web-forms to distinguish use of the form by humans as opposed to automated agents. Typically, it requires entering text corresponding to a distorted image or from a sound stream.
Source(s): NIST SP 800-63-2

Synonym(s):

None

See Also:

None