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POSTER: A Multi-Signal Model for Detecting Evasive Smishing

Published: May 23, 2025 | arXiv ID: 2505.18233v2

By: Shaghayegh Hosseinpour, Sanchari Das

Potential Business Impact:

Stops phone scams by spotting fake messages.

Business Areas:
SMS Internet Services, Messaging and Telecommunications

Smishing, or SMS-based phishing, poses an increasing threat to mobile users by mimicking legitimate communications through culturally adapted, concise, and deceptive messages, which can result in the loss of sensitive data or financial resources. In such, we present a multi-channel smishing detection model that combines country-specific semantic tagging, structural pattern tagging, character-level stylistic cues, and contextual phrase embeddings. We curated and relabeled over 84,000 messages across five datasets, including 24,086 smishing samples. Our unified architecture achieves 97.89% accuracy, an F1 score of 0.963, and an AUC of 99.73%, outperforming single-stream models by capturing diverse linguistic and structural cues. This work demonstrates the effectiveness of multi-signal learning in robust and region-aware phishing.

Country of Origin
πŸ‡ΊπŸ‡Έ United States

Page Count
2 pages

Category
Computer Science:
Machine Learning (CS)