: Navigate to Privacy & Security > Security and click "Open Anyway" under the section mentioning the blocked .pkg file.
You can download the verified macOS version directly from the official 3uTools website or via the Softonic Mac download page . Key Features for Mac Users 3utools for mac 10116 verified
If the native 3uTools version is incompatible with El Capitan, consider these verified alternatives: iTunes : Navigate to Privacy & Security > Security