The .crypt15 file format is associated with WhatsApp’s encrypted backup files stored on Google Drive or local storage. It is part of the WhatsApp Crypt series (e.g., .crypt14, .crypt12, etc.), which encrypts chat backups for security. Key Details About .crypt15 Files Used by: WhatsApp to store chat backups securely. Encryption: End-to-end encrypted using a key stored in the phone’s internal memory. Storage Locations: Local Storage: /sdcard/WhatsApp/Databases/msgstore.db.crypt15 Google Dri...