Quark-Z

Pack C · Security

Software knows when it's being watched.

Apps detect emulators, test environments, and analysis tools, and change their behavior when they find them. What you observe in a lab is not what happens in the world.

Concept preview of the Sentinel security overview: suspicious apps run to completion on real hardware, categorized by behavior and scored, with one banking-trojan sample flagged critical for review.
Concept preview · product in development

Detonate safely, observe everything

Run suspicious apps on real hardware and watch what they do. There is no emulator for them to detect, so they don't hold back.

Continuous threat intelligence

Turn ongoing detonations into a stream of indicators and behavioral insight, drawn from what malware actually does, not what it looks like.

Prove your detection works

For mobile security vendors: test detection products at scale against live threats behaving naturally on real devices.

Beyond the app store

Analyze threats that never arrive as an app: SMS phishing, malicious QR codes, NFC and relay attacks, on the real channels they abuse.

From behavior to verdict

Automated reports with a security score for every app analyzed, plus pattern recognition that categorizes behavior so you can triage at scale.

Concept preview of a Sentinel sample detail: a critical banking-trojan detonated on a real, fully certified device, its observed behaviors turned into a verdict and reduced to indicators, with full-depth analysis available under NDA.
Concept preview · product in development

Contact

Sentinel is pre-launch. These are the conversations we're looking for.

Investors

We're always open to conversations with investors who work in deep tech. Book a meeting and we'll show you where Sentinel is.

Book a meeting

Engineers & practitioners

We're interviewing practitioners in security, privacy, compliance, and mobile QA. Thirty minutes of your experience will shape what we build.

Share your experience

Design partners

We work with a small number of teams as design partners, tuning Sentinel against their real apps before launch. Partners are first onto the beta. Slots are limited.

Apply for a slot

Confirmation code comes from Microsoft. If you don't see it, check your spam folder.

Quark-Z is building Sentinel, a platform that shows you what mobile software actually does by observing it on real devices, invisibly. Founded in Spain, working globally.

Quark-Z S.L.contact@quark-z.comBuilt in Spain