Why We Built CheckPhrase
In the rapidly expanding world of decentralized finance (DeFi), the phrase "not your keys, not your coins" has never been more relevant. However, the responsibility of self-custody comes with immense risk. Billions of dollars are lost annually to phishing campaigns, malware, and compromised storage environments that target BIP39 recovery phrases.
At TRM Labs, we trace the flow of illicit funds and provide blockchain intelligence to law enforcement, regulators, and top-tier exchanges. But we realized that defensive measures must begin at the consumer level.
CheckPhrase was developed as a proactive defense mechanism. By allowing users to securely audit their mnemonic phrases against known threat-intelligence databases without exposing their raw data, we aim to prevent digital asset theft before the transaction is ever broadcasted to the blockchain.
Our Core Security Pillars
The principles that govern our cryptographic architecture.
Zero-Knowledge
Trust is a vulnerability. Our tools are built on the absolute necessity of client-side execution. We do not want your data, and our architecture ensures we mathematically cannot see it.
Open Standards
We rigidly adhere to the Bitcoin Improvement Proposal 39 (BIP39) framework. By enforcing strict dictionary validation, we prevent user error and ensure flawless hash generation.
Global Intelligence
Backed by TRM Labs' expansive threat-intelligence network, we aggregate data from dark web credential markets, phishing honeypots, and centralized exchange breaches globally.