SafeSMS: On-Device Threat Detection with Gemma 4 E4B, no internet required
SafeSMS is a new Android application designed to protect users from SMS-based scams and phishing without requiring an internet connection. It utilizes an on-device AI model, Gemma 4 E4B, to analyze messages in real-time while ensuring user privacy. The app categorizes messages as SAFE, SUSPICIOUS, or SCAM and provides detailed explanations for its assessments.
- ▪SafeSMS is designed to protect users from SMS scams and phishing.
- ▪The application runs entirely on-device, ensuring user privacy by not sending data to the cloud.
- ▪It categorizes incoming messages and provides a confidence score along with explanations for its classifications.
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Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | DEV.to (Top) |
| Canonical URL | https://dev.to/parulmalhotraiitk/safesms-on-device-threat-detection-with-gemma-4-e4b-no-internet-required-24p3 |
| Publication time | Sat, 23 May 2026 07:16:45 +0000 |
| Retrieval time | 2026-05-23T07:37:25.773Z |
| Last seen | 2026-05-23T07:37:25.773Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | 6KE9k_4AuyPc |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3818397) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Parul Malhotra Posted on May 23 SafeSMS: On-Device Threat Detection with Gemma 4 E4B, no internet required #devchallenge #gemmachallenge #gemma Gemma 4 Challenge: Build With Gemma 4 Submission This is a submission for the Gemma 4 Challenge: Build with Gemma 4 What I Built SafeSMS is a privacy-first Android application designed to protect users from the rising threat of SMS-based scams, phishing, and spam.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at DEV.to (Top).
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