GetChain News
中简 中繁 EN
GetChain News
Toggle sidebar

Security/Hacker

News linked to both this project and an event.

Coldcard Vulnerability Has Resulted in Nearly $114 Million in Bitcoin Losses, With Insufficient Entropy in Some Wallet Mnemonics

Odaily Planet Daily Report: Bitcoin hardware wallet manufacturer Coinkite disclosed in late July 2026 that a firmware build error introduced in March 2021 caused some Coldcard wallets to generate mnemonics from a smaller range, reducing the randomness of user private keys. Galaxy Research analysts stated that the Coldcard exploit occurred in multiple rounds, with observed Bitcoin losses rising from approximately $88 million to nearly $114 million within days. Researchers warned that other vulnerable addresses could still become targets, prompting many Coldcard users to move their Bitcoin. Coldcard is a Bitcoin-only wallet that supports offline signing via microSD card and optional QR codes. Launched in 2017, it has long been regarded as one of the security-focused Bitcoin hardware wallets.

SlowMist Discloses Phishing Campaign Involving Fake TronLink Chrome Extension That Steals Wallet Credentials Such as Mnemonics and Private Keys

According to SlowMist, its security monitoring system MistEye has detected a counterfeit TronLink Chrome MV3 extension targeting TRON wallet users with a two-layer phishing attack. The extension disguises itself as the official plugin using Unicode obfuscation and brand spoofing. Upon installation, it first loads a remote iframe-based pop-up page designed to trick users into entering their mnemonic phrases, private keys, keystore files, and passwords—then exfiltrates this sensitive data via same-origin APIs to a Telegram bot. The malicious infrastructure involved includes the domains tronfind-api[.]tronfindexplorer[.]com and trx-scan-explorer[.]org; the malicious extension ID is ekjidonhjmneoompmjbjofpjmhklpjdd. SlowMist advises users to immediately uninstall the extension. If sensitive information has already been submitted, users should promptly migrate their assets and discontinue use of the compromised wallet.