Stop SMS phishing
before it ever reaches a phone.
Neutro is the AI firewall for mobile networks. Our models analyze every SMS in milliseconds, neutralizing smishing, fraud and impersonation at the carrier edge — invisible to your subscribers.
< 40ms latency · 99.97% precision · Carrier-grade SLA
Smishing is the
fastest-growing fraud channel.
One in three subscribers receives a fraudulent SMS every month. Legacy keyword filters and DLR-based heuristics miss 60% of modern campaigns — and the cost falls on operators, OEMs and end customers.
- Polymorphic links that mutate every minute
- Spoofed sender IDs that bypass A2P registries
- AI-generated lures in dozens of languages
- Brand impersonation of banks, couriers and tax agencies
A complete defense layer for the SMS channel.
Edge-deployed inference
Our transformer models run inside your SMSC or in a private VPC. Decisions happen in under 40 ms, no message ever leaves your perimeter.
Multi-signal analysis
Sender reputation, URL graph, payload semantics, behavior history and link-redirect chains fused into a single threat score.
Self-learning models
Federated learning across the Neutro network means new campaigns spotted on one carrier are blocked on every carrier within minutes.
Privacy by design
Messages are processed in memory, never stored. SOC 2 Type II, ISO 27001 and GDPR-ready out of the box.
Operator console
Real-time dashboards, fraud taxonomies, exportable reports and per-rule overrides for your SOC team.
OEM SDK
Drop-in on-device library for Android and iOS. Filter at the modem layer with the same models, even on MVNO traffic.
Four steps. Zero subscriber friction.
Inline integration
Neutro sits transparently between your SMSC and downstream delivery. SMPP, SS7 and HTTP APIs supported.
AI inspection
Every message is scored across 220+ features by our smishing-specialized LLMs in under 40 milliseconds.
Policy decision
Block, quarantine, rewrite the link or deliver with a warning banner — fully configurable per route.
Continuous learning
Verdicts feed our federated threat graph, sharpening detection across the entire Neutro network in real time.
Protect every subscriber on your network
- Deploys inline at the SMSC — no client app needed
- Reduces fraud complaints and chargeback exposure
- Audit-ready reporting for regulators (Ofcom, CNMC, FCC)
Ship the safest SMS app on the market
- Lightweight SDK for Android and iOS messaging stacks
- Works offline with on-device model distillation
- Differentiate flagship devices with built-in fraud defense
"Neutro cut smishing complaints on our network by 94% in the first quarter. It's the most impactful infrastructure deployment we've done in five years."
Built to the standards your security team demands.
Neutro is deployed inside your network or in a dedicated tenant. We process messages in memory, log only metadata, and let you bring your own keys.
Built for scale. Priced for partnership.
Operator
For mobile network operators and MVNOs.
- Inline SMSC integration
- Unlimited message volume
- 24/7 carrier-grade SLA
- Dedicated SOC liaison
OEM
For device manufacturers and OS vendors.
- On-device SDK (Android & iOS)
- Federated model updates
- White-label UX components
- Quarterly model refresh
Enterprise
For banks, retailers and large brands.
- A2P sender protection
- Brand impersonation monitoring
- Takedown coordination
- API & webhook access
Make smishing
a problem of the past.
See Neutro running on a sample of your real traffic. Most pilots take less than two weeks.