<![CDATA[Oi, to intensively utilize social media without adequate digital security literacy, creating vulnerabilities exploited through social engineering that targets human psychological weaknesses. This study aims to measure the level of digital security awareness among members of Ormas Oi South Tangerang before and after an educational intervention, and to analyze the significance of the difference as an indicator of the effectiveness of preventing social engineering practices on social media. This research employed a quantitative approach with a quasi-experimental one-group pretest-posttest design involving 25 active members selected through purposive sampling, with data analyzed using a paired sample t-test. Results showed that digital security education scores increased from an average of 10.76 to 16.32, and social engineering prevention awareness increased from 16.12 to 23.96, with a significance value of p<0.05 and a very large effect size, although N-Gain scores were predominantly in the moderate category. These findings confirm that structured education effectively shifted members' cognitive patterns from passive social trust toward reflective vigilance as a human firewall. It is concluded that the educational intervention had a significant impact, though it should be conducted continuously with real-case simulations, and future research is recommended to employ control groups and longitudinal measurements.]]>
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