Vladimir Metnew (2020, tweet): Popular macOS apps with a file-sharing functionality didn’t delegate file quarantine to OS leading to File Quarantine bypass (Windows MOTW analogue) for downloaded files.[…]Many popular products like Keybase, Slack, Skype, Signal, Telegram decided to fix the issue, but the vulnerability remains unfixed in file-syncing apps: Dropbox, OneDrive, Google Drive, etc.[…]Apple knows […]