Answer
The difference is the medium. Libel is defamation committed in writing, print, or another permanent or broadcast form; slander (oral defamation) is committed by spoken word. Cyber libel is libel committed through a computer system under the Cybercrime Prevention Act.
Both protect reputation and share the core element of a defamatory imputation made publicly, but they are penalized under different provisions, and libel and cyber libel generally carry heavier penalties than ordinary slander.
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