If Apple tools are not avaiable you can check the SHA1 checksum of the downloaded image: Please check the integrity of the downloaded package by checking the signature:
Note: Although we take precautions when assembling binaries, please use the normal precautions with downloaded executables. R and package binaries for R versions older than 4.0.0 are only available from the CRAN archive so users of such versions should adjust the CRAN mirror setting ( ) accordingly. This directory contains binaries for the base distribution and of R and packages to run on macOS.
