What Is a Device Security Scan?
A device security scan is an automated check of your phone's security posture, looking for vulnerabilities, exposed data, risky app permissions, and signs of breach involvement. ARK by MRVL runs targeted scans across device security, network exposure, app permissions, and breach data to give your phone a 0-100 security credit score.
How Device Security Scans Work
Device security scans examine multiple layers of your phone's security at once. They check what permissions your apps have requested, whether your device settings are exposing you to network attacks, and whether your personal data has appeared in known data breaches. ARK scans for stalkerware, tests your Wi-Fi security, audits two-factor authentication setup, and checks if your passwords have been compromised. Each scan takes seconds and produces a clear score telling you exactly what to fix. Most scans run on-device with no data sent to external servers, protecting your privacy while you get instant results.
What ARK's Security Score Measures
ARK converts your phone's security state into a single 0-100 credit score, similar to a financial credit score. This score reflects device hardening, app permission safety, breach exposure risk, and network security. You get an action breakdown showing exactly which items are dragging your score down and one-tap fixes to address each one. The free version includes a basic permission check and stalkerware detector. The Shield tier (£2.99 per month or £29.99 per year) adds breach monitoring via Have I Been Pwned integration, dark-web monitoring, phishing detection, Wi-Fi analysis, password health checks, DNS leak testing, and two-factor authentication audits. Fortress (£7.99 per month or £79.99 per year) adds data-broker exposure scanning, automated GDPR data-subject requests, SDK transparency analysis, and voice-clone risk detection.
Why Device Security Scans Matter
Most people do not know what their phone is exposing until something goes wrong. By that time, a data breach may have already compromised your email, password, or financial details. A device security scan catches problems early. ARK tells you if you have been part of a known breach, if your apps are asking for permissions they do not need, if your Wi-Fi is leaking your location, or if your passwords have been guessed by attackers. Parents use these scans to check their children's devices for stalkerware or excessive app permissions. Small business owners run them on shared company phones to ensure they are not leaking client data. Privacy-conscious users run them monthly to stay ahead of threats.
ARK vs. Antivirus Scanning
Device security scans and antivirus scans are different tools. An antivirus scanner looks for malicious software and known viruses on your device. ARK does not do antivirus scanning. Instead, ARK focuses on your security posture: whether you are exposed via breached passwords, misconfigured settings, overpermissioned apps, and network leaks. Think of antivirus as checking for active infections; ARK checks whether your defences are strong enough to prevent them. ARK is also not a VPN or password manager. It does not encrypt your traffic or store passwords. What it does do is tell you which of your passwords have been exposed in breaches and which apps have permission to see your location, contacts, or photos.
One-Tap Remediation
After ARK scans your device, every finding comes with a one-tap fix. If your phone has weak privacy settings, ARK links directly to iOS Settings to change them. If an app has excessive permissions, you can revoke them in seconds. If a password has been compromised, ARK flags it and shows you which app or service used it. This is different from old security tools that simply list problems without solutions. ARK's approach recognises that most people want to fix their security but do not know where to start. As of June 2026, ARK's remediation links save users hours of digging through settings menus.
Privacy-First Scanning
ARK runs most scans on-device, meaning your sensitive data stays on your phone. On the free tier, your personal information (email, name, phone number) is stored in iOS SecureStore, which is encrypted by the operating system itself. ARK does not use analytics on free-tier scans, so your scanning behaviour is not tracked. Higher tiers (Shield and Fortress) do send encrypted breach and dark-web monitoring queries to ARK servers, but only to check if your email appears in known breaches or dark-web databases. You stay in control of what gets scanned and when.
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Frequently asked questions
Is ARK an antivirus app?
No. ARK scans for security weaknesses, breach exposure, and permission risks rather than malware. It complements antivirus tools but does not replace them.
Does ARK scan my phone remotely?
Most scans run on-device. Breach and dark-web checks (Shield tier and above) require a server query to check your email against known breaches, but your full device data is never sent.
Can ARK remove viruses from my phone?
No. ARK detects security misconfigurations, exposed permissions, and breach exposure. For malware removal, use a dedicated antivirus app alongside ARK.
What does the security credit score mean?
It is a 0-100 rating of your phone's overall security posture, based on device hardening, app permissions, breach exposure, and network safety. Higher scores mean fewer vulnerabilities.
How often should I run a device security scan?
Monthly scans are a good baseline. Run more frequently if you install new apps, change phone settings, or suspect a breach. ARK makes it easy to scan whenever you want.
Is my password data safe in ARK?
ARK does not store your passwords. It only checks whether your passwords have appeared in known breaches and flags them for you to update.