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SiMiS
SiMiS Crypto Wallet
Bank-Grade Security in Your Smartphone
Transform your smartphone into an ultra-secure crypto vault with SiMiS Wallet's revolutionary SIM card integration. Built with military-grade encryption yet as simple to use as your banking app, SiMiS eliminates the need for separate hardware devices. Store, manage, and protect your digital assets with confidence, knowing your cryptocurrencies are secured by the most advanced mobile security technology available today.
Understanding Crypto Wallet Types
Online Wallets
Web-based solutions that store your bitcoin keys on a server, offering convenience but potential security risks.
Software Wallets
Applications installed on your device, storing keys locally for a balance of accessibility and security.
Hardware Wallets
Dedicated devices designed for secure crypto transactions, offering high security but less convenience.
Paper Wallets
Physical printouts of your keys, providing offline security but requiring careful handling.
The Security Advantage of Hardware Wallets
Superior Protection
Hardware wallets offer unparalleled security by storing your private keys offline, making them nearly impervious to hacking attempts. This air-gapped approach ensures that your crypto assets remain safe from online threats and malicious actors.
Limitations
Despite their security benefits, hardware wallets come with drawbacks. They can be complex to set up, inconvenient for frequent transactions, and pose a risk of permanent loss if backup procedures are mishandled.
Challenges with Traditional Hardware Wallets

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Complexity
Difficult setup and use for non-technical users

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Accessibility
Balancing security with convenient access to funds

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Recovery Risks
Potential for permanent loss if backup mishandled

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Limited Compatibility
Not all cryptocurrencies supported by every wallet
Key Pain Points of Hardware Wallets
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Flexibility Issues
Limited mobility requires physical access for every transaction, hindering spontaneous trades or quick transfers.
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User Experience Challenges
Complex setup and multiple steps for transactions can make simple operations time-consuming and frustrating.
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Cost Considerations
Significant initial investment exceeding $50 for a reliable device, plus potential costs for backup devices.
Introducing SiMiS: The Revolutionary Crypto Wallet

Military-Grade Security
Leveraging smartphone SIM cards for unparalleled protection of your digital assets.

Seamless User Experience
Intuitive interface eliminates the traditional trade-off between security and convenience.

Always With You
Integrated into your SIM card, your crypto wallet is always accessible and secure.

Breakthrough Innovation
Transforms an everyday item into a powerful, portable crypto management solution.
SiMiS Crypto Wallet: Technical Overview
Hardware Wallet Integration
Utilizes the SIM card's Secure Element for uncompromising protection of private keys and cryptographic functions.
Seamless Mobile Experience
Runs on Android platforms (API level 22+) with Javacard 3.0.4/3.0.5 SIM cards, supporting both Bitcoin and Ethereum.
Three-Component Architecture
Combines a signing-only wallet (SIM applet), networked wallet, and user interface (Android app) for comprehensive functionality.
Key Features of SiMiS Crypto Wallet
Networked Wallet & UI
  • Broadcast transactions
  • View transaction history
  • Display current address and balance
  • Scan/show QR Code Address
Signing-Only Wallet (SIM)
  • Generate private and public keys
  • Expose public key securely
  • Sign transactions within secure environment