I have a USB flash drive that worked fine one day, now I get this error. I have a 2017 Mac Book Pro running Big Sur 11.2.2.

You can’t open the application “SanDiskSecureAccessV3_mac” because this application is not supported on this Mac.

Please help:)

I have the same year MacBook Pro and Big Sur 11.2.3. I too have a USB thumb drive that used to work fine and now it will not open any files. Were you able to find a solution?