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Every Click
Every Step
Secured

Real-Time MonitoringAuto loginTracking Pixel DetectionSecure Clipboard ProtectionPhishing ProtectionData EncryptionHigh-Risk Site Detection
Dashboard of Nautillo extension

Nautillo is a browser extension designed to enhance web security and protect user privacy while browsing

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Nautillo does in your browser

Real-time defence, privacy controls, and account safety — quietly, in the background

Catch weak and known-leaked passwords

When you enter a password, Nautillo checks it against a hashed breach list, not your plain text password, and warns you if it matches a weak or widely leaked one. With Sonar, including trial and paid plans, you get this extra layer of account protection where it matters most, during logins and sign ups.

Extra scrutiny for risky email content

With monitoring enabled, Nautillo helps you spot suspicious links, attachments, and patterns in webmail views, so phishing and scam emails get a second look before you click. It supports your judgment and keeps you in control of what you open or trust.

Auto-logout protects your accounts

Stepped away from your desk? Nautillo signs you out of sensitive sessions after idle time, so accounts do not stay open. With Sonar, you can add custom domains for auto logout, built for banking, admin panels, and any account you secure before leaving.

Sensitive copy that doesn’t stick around

When Secure Copy is on, the clipboard clears automatically after 10 seconds. Passwords, codes, and card details do not linger. Built for fast paste workflows without leaving sensitive data for the next app to access.

A live security score you can actually use

See your protection at a glance. View incidents avoided, monitoring status, and your overall score, so you always know how safe you are right now with a clear answer.

Your data stays yours

Nautillo follows a minimal data collection approach and does not sell your browsing history. Sessions and settings use modern browser security practices, so your activity stays on your device and within your account, not shared or resold.

Echo vs Sonar

Echo delivers essential protection in a lightweight form. Sonar adds deeper session control with custom auto logout lists and advanced checks, so you can match coverage to your workflow and online banking habits.

Install in seconds. 30 days of Sonar, on us

Start with Echo for essential protection as soon as you add Nautillo. You then get 30 days of full Sonar coverage with session tools, leaked password checks, and stronger email safeguards, with no card required. Upgrade or stay on Echo at any time.
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