StealthTalk Private Messenger vs OK.secure

StealthTalk is a private messenger designed to meet high demands of business- and privacy-minded professionals. Based on a patented SDNP protocol developed for professional use in telecommunications, StealthTalk bridges the gap between professional and consumer security solutions. KEY FEATURES Secure Voice Calls Make secure calls with exceptional voice quality, even with slow internet connection speeds based on TETRA professional communication standards and SDNP protocol. Secure Messages Exchange true end-to-end encrypted messages with all sensitive message data encryption and decryption taking place entirely on the user device. Self-Destruct Messages Send confidential messages that are erased automatically after a selected period of time. Stealth Mode Protected stealth environment for sensitive calls and messages that requires users to enter their password to preview messages or receive calls. PRIVACY & SECURITY End-to-End Encryption All communication within StealthTalk is always protected with end-to-end encryption powered by a patented SDNP protocol that uses ECC 512, AES 256 and SHA-3 512 as primitives. Zero-Knowledge Proof StealthTalk knows nothing about the content of your messages or calls. User data is not collected or stored on StealthTalk servers and cannot be analyzed, sold or disclosed. Professional Telecommunications Technology StealthTalk communication security is based on the patented, tried and field-tested SDNP protocol developed for and used in professional telecommunications. REQUIRED PERMISSIONS StealthTalk requires the following permissions to deliver its private messaging services and ensure all features are operational. • Contacts: Contacts permission is used to match you with your contacts using phone number hashes. StealthTalk does not monetize, collect or store your address book data. • Microphone: Microphone access is required to make secure voice calls • Bluetooth & Location: Bluetooth and location access is needed to locate devices close to you and enable encryption key exchange. • Camera: Camera access is needed to add new contacts via QR code and send pictures with the built-in camera. • Storage: Storage access is needed to store images and files that you receive in chats. For additional information and suggestions, please contact support@stealthtalk.com

Private Encrypted Messenger & Crypto Wallet platform. The OK.secure app with end-to-end encryption based on blockchain technology for your private and secure communication. OK.secure only requires your internet connection. NO telephone charges for calls, chat with your friends or make a video call with family, friends or colleagues at no additional cost from anywhere in the world. > Encrypted Messenger with File-Sharing - Chat feature with group chat - Receive messages only AFTER accepted invitation; communicate securely and exclusively with your contacts, no threat to privacy - Voice and video calls: Call your friends, family, colleagues and partners anywhere in the world - Screen sharing, privately share your screen with your contacts during the call (web application) - Share files securely and privately, including photos, videos, and voice messages (web application) - Military-grade end-to-end encryption for all features (256-bit AES encryption; RSA 2048-bit key cryptography; Elliptic Curve Cryptography; PBKDF2 key derivation with SHA-256 hashing) OK.secure is simple, FREE and easy to use. OK.secure protects your privacy by encrypting all of your messages and data at NO EXTRA CHARGE. We offer the highest level of security and privacy. Our OK.secure platform operates on a ZERO-KNOWLEDGE principle, providing complete data security. No one but you has access to YOUR personal information. OK.secure privacy features include: * End-to-end encrypted communications and data * Blockchain technology for decentralized digital identities * Decentralized cloud storage * Zero knowledge concept - we can never see your messages or data * Push notifications notify you when new messages arrive * Integrated into the OK.secure web application - use the full range of features from your PC / Mac * Protected privacy - your encrypted data is never be shared with third parties > Crypto Wallet In addition to being a secure messenger, our latest update includes the all-new Crypto Wallet, a one-stop shop for all your crypto needs. Keep all your valuable and private crypto assets in one secure place with end-to-end encryption built into the blockchain. * Store: Keep all your crypto in the most secure place in your own non-custodial crypto wallet (BTC wallet, Ethereum wallet) built into the OK.secure app * DeFi: Buy and trade digital assets from your crypto wallet Wallet features: * Non-custodial multi-cryptocurrency wallet with Bitcoin, Ethereum & Binance Smart Chain support * Crypto/Fiat exchange * Send/request/pay crypto directly in chat * QR scan for easy crypto payments * Biometric authentication * Buy gift cards and vouchers with crypto Visit our knowledge-base: https://www.ok.de/faq Follow us: https://business.facebook.com/OK.de.email What happens in OK.secure stays in OK.secure!