Abstrak Perkembangan transaksi keuangan digital di kalangan pelajar menuntut peningkatan literasi keamanan finansial digital. Kegiatan pengabdian masyarakat ini bertujuan meningkatkan pemahaman siswa kelas XII SMK Sunan Bejagung Tuban terkait penggunaan dompet elektronik secara aman, pencegahan kejahatan siber, serta verifikasi legalitas layanan keuangan digital. Metode yang digunakan berupa sosialisasi, simulasi praktik keamanan akun, diskusi interaktif, serta evaluasi melalui pretest, posttest, dan angket respon. Kegiatan melibatkan 68 siswa dan menunjukkan peningkatan pemahaman signifikan dari kategori kurang menjadi sangat baik setelah kegiatan. Respon peserta juga sangat positif sehingga kegiatan dinilai efektif meningkatkan literasi keamanan finansial digital. Secara kuantitatif, hasil analisis deskriptif menunjukkan peningkatan kategori pemahaman sangat baik dari 1,7% (pretest) menjadi 82,8% (posttest), serta penurunan kategori kurang dari 66,8% menjadi 0%, yang dihitung berdasarkan persentase jumlah responden pada tiap skala penilaian instrumen pretest dan posttest (N=68). Kata kunci: literasi digital; dompet elektronik; keamanan siber; pelajar SMK; pengabdian masyarakat. AbstractThe rapid growth of digital financial transactions among students has increased the need for stronger digital financial security literacy. This community service program aimed to enhance the understanding of Grade 12 students at SMK Sunan Bejagung Tuban regarding the safe use of electronic wallets (e-wallets), cybercrime prevention, and verification of the legitimacy of digital financial services. The program employed educational sessions, hands-on simulations of account security practices, interactive discussions, and evaluations using pretests, posttests, and participant response questionnaires. A total of 68 students participated in the program. The findings demonstrated a substantial improvement in participants’ understanding, shifting from a poor level before the program to a very good level after its completion. Participants also provided highly positive responses, indicating that the program was effective in strengthening digital financial security literacy. Quantitatively, descriptive analysis showed that the proportion of participants in the very good understanding category increased from 1.7% in the pretest to 82.8% in the posttest, while the proportion in the poor category decreased from 66.8% to 0%. These percentages were calculated based on the number of respondents within each rating category of the pretest and posttest instruments (N = 68). Keywords: digital literacy; electronic wallets; cybersecurity; vocational high school students; community service.