Crypto wallet security assessment for Temple Wallet | Cossack Labs

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Case Temple Wallet DeFi SEP 2021 - MAY 2022

Crypto wallet security assessment for Temple Wallet

Temple Wallet audit results

In the public reports, we summarised the security assessment of Temple Wallet apps: the process, a list of findings and their status, and theoretical and practical concerns. We'd like to highlight the Madfish team's solid security-oriented engineering effort in building and securing the apps. Read details below.


  • FSA / Fintech

  • Blockchain

  • Cryptocurrency

Technology stack

  • React Native (iOS, Android)

  • Web extension (Chrome, Firefox)

  • LPoS


  • Typical fintech security requirements

  • Encryption Export Regulations


Technology requirements

Encrypt data at rest

Multi-platform solution

Financial app security built into UX

Our approach

Understanding blockchain and non-custodial wallet security threats

Building mobile/web platform-specific security controls

Integrating reliable cryptographic tools


Additional relevant materials

Products and services involved

Mobile apps security

Mobile apps security

Read moreMobile apps security
Cryptography engineering

Cryptography engineering

Read moreCryptography engineering
Security engineering

Security engineering

Read moreSecurity engineering


Read moreThemis


The Temple Wallet web extension and mobile apps are now synced in their security guarantees and provide defence in depth protection for the user’s data. With a security baseline similar to financial apps, the Temple Wallet uses platform-specific security controls to protect users' cryptocurrency accounts in line with industry best practices.

Results and outcomes

Smooth and maintainable security

Web, mobile, and cloud platforms bring unique threats but provide platform-specific security controls. Combining "boring" traditional application security with platform-specific measures results in reliable protection. Talk to us if you build cross-platform applications and want to take your appsec to the next level.

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