"Slow Fog: In-Depth Analysis of Security Risks in Fingerprint Browsers" (Author: wowo, Editor: 77) Fingerprint browsers typically maintain their own "app store" or distribute extensions from their own servers — the security of this self-built distribution chain entirely depends on the vendor’s own security standards; in Electron architecture, the main process (Node.js environment) of fingerprint browsers has full file system access to all local storage data in the browser environment; some fingerprint browsers offer "cloud environment synchronization" features. If these backup data include local storage for wallet extensions (which they usually do), then the user's encrypted wallet Vault files are uploaded to the vendor’s cloud servers. Read more: