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The inefficiencies of current spam filters against fraudulent (419) mails is not unrelated to the use by spammers of good-word attacks, topic drifts, parasitic spamming, wrong categorization and recategorization of electronic mails by e-mail clients and of course the fuzzy factors of greed and gullibility on the part of the recipients who responds to fraudulent spam mail offers. In this paper, we establish that mail token manipulations remain, above any other tactics, the most potent tool used by Nigerian scammers to fool statistical spam filters. While hoping that the uncovering of these manipulative evidences will prove useful in future antispam research, our findings also sensitize spam filter developers on the need to inculcate within their antispam architecture robust modules that can deal with the identified camouflages.

The chapter investigates the adoption and use of YouTube to enhance teaching and learning of research methodology in Nigeria universities. Using a correlational survey research design, the study adapts the theory of reasoned action to present an ICT-literacy model to enhance the use of YouTube in the teaching and learning of research methodology in the university system. The questionnaire was used to obtain information from the respondents and was subjected to validation, and data obtained were analyzed quantitatively using the frequency and percentage; and the regression analysis at 0.05 level of significance was used to test the hypotheses of the study. The result of the study shows that the level of knowledge of, ICT literacy, subjective norms, and the cognitive ability in the use of YouTube was low. The level of knowledge, subjective norms, and ICT literacy were good predictors of use of YouTube in teaching and learning of research methodology.

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