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Password Owl - Secure password manager with autofill. Zero-knowledge encryption for your logins and cards. PasswordOwl - Zero-Knowledge Password Manager Secure your digital life with PasswordOwl, the password manager that never sees your passwords. Built with zero-knowledge architecture, your credentials are encrypted on your device before they ever leave it. Not even we can access your data. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ WHY PASSWORDOWL? In a world of constant data breaches, traditional password managers store your vault on their servers with keys they control. If they get hacked, your passwords are at risk. PasswordOwl is different. We use a zero-knowledge security model where: • Your master password never leaves your device • Encryption happens entirely in your browser • Our servers only store encrypted blobs they cannot decrypt • Even if our servers were compromised, attackers would get nothing useful ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ KEY FEATURES ★ Smart Autofill Automatically detects login forms on any website and offers to fill your saved credentials with a single click. No more copying and pasting passwords. ★ Save New Logins When you sign in to a new website, PasswordOwl prompts you to save the credentials to your vault. Building your password collection is effortless. ★ Powerful Password Generator Create strong, unique passwords instantly. Customize length, include uppercase, lowercase, numbers, and special characters. Generate passwords that are virtually impossible to crack. ★ Quick Search Find any login instantly with our fast search. Type a few characters of the website name and access your credentials in seconds. ★ Auto-Lock Protection Your vault automatically locks after a period of inactivity. Even if you step away from your computer, your passwords remain protected. ★ Cross-Device Sync Access your passwords on any device through the PasswordOwl web app. Your encrypted vault syncs securely across all your devices. ★ Secure Notes Store sensitive information beyond passwords: credit cards, secure notes and more. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ SECURITY ARCHITECTURE PasswordOwl employs military-grade security standards: ▸ AES-256-GCM Encryption The same encryption standard used by governments and financial institutions worldwide. Each piece of data is encrypted with a unique initialization vector. ▸ Argon2id Key Derivation Winner of the Password Hashing Competition. We use aggressive parameters (64MB memory, 3 iterations) to make brute-force attacks computationally infeasible. ▸ Two-Secret Key Derivation (2SKD) Your vault is protected by two secrets: your master password (memorized) and a unique Secret Key (stored on your devices). Both are required to decrypt your vault. This means: - If someone guesses your password, they still need your Secret Key - If our servers are breached, attackers cannot derive your keys - If someone steals your device, they still need your password ▸ OPAQUE Protocol We use the OPAQUE protocol for authentication, a cutting-edge cryptographic protocol where your password is never transmitted to our servers, not even in hashed form. The server authenticates you without ever learning your password. ▸ Local-Only Decryption All encryption and decryption operations happen exclusively in your browser using the Web Crypto API. Your master password and vault key exist only in memory and are never persisted to disk. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ HOW IT WORKS 1. Create your account on passwordowl.com 2. Set a strong master password and save your Secret Key 3. Install this extension 4. Log in with your credentials 5. Start saving and autofilling passwords When you visit a website with a login form, PasswordOwl displays a subtle icon in the password field. Click it to see matching credentials from your vault. Select one to autofill instantly. When you submit a login form with new credentials, PasswordOwl offers to save them. One click adds them to your encrypted vault, ready for next time. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ PRIVACY FIRST We believe privacy is a fundamental right. Here's our commitment: ✓ Zero tracking or analytics in the extension ✓ No third-party scripts or libraries that phone home ✓ Open security architecture (documentation available) ✓ We cannot read your passwords, even if legally compelled ✓ No ads, ever ✓ Your data is yours - export anytime ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ PERMISSIONS EXPLAINED We request only the permissions necessary for the extension to function: • Storage: Save your encrypted session and preferences locally • Active Tab: Detect login forms on the current page • Tabs: Update the extension badge with matching login count • Scripting: Inject autofill functionality into web pages • All URLs: Offer autofill on any website you visit We never access or read page content beyond detecting login forms. We never transmit your browsing history or any unencrypted data. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ GETTING STARTED New to PasswordOwl? Here's how to get set up: 1. Visit https://passwordowl.com and create your free account 2. Choose a strong, unique master password you'll remember 3. IMPORTANT: Save your Secret Key in a safe place (we cannot recover it) 4. Install this extension and log in 5. Start browsing and saving passwords Already have an account? Simply install the extension and log in with your existing credentials. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ TIPS FOR MAXIMUM SECURITY • Use a unique master password you don't use anywhere else • Store your Secret Key in a secure location (printed copy in a safe, secure note app) • Enable auto-lock for when you step away • Use the password generator for all new accounts • Never share your master password or Secret Key ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ SUPPORT Questions or issues? We're here to help: • Website: https://passwordowl.com • Email: support@passwordowl.com ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ABOUT US PasswordOwl was built by security-focused developers who were frustrated with existing password managers that compromise on privacy. We believe you shouldn't have to trust a company with your most sensitive data. With zero-knowledge architecture, you don't have to. Your passwords. Your control. Your privacy.