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The UI "cut" and "paste" operations produce a move on Windows as well, which does copy and then delete the original. It's the "both of which are then undoable" which is the problem -- obviously this is not always true (consider when the original location, on removeble media, has been unplugged). The flaw lies in an "undo" operation which does not test whether the "undelete the original" step succeeds before moving on to "remove the copy".
– Ben Voigt
Commented Jan 2, 2023 at 22:50
1

macOS Finder does have a CMD-Z undo function, however it frequently becomes disabled, likely to prevent this exact thing from happening.
– At0micMutex
Commented Jan 3, 2023 at 6:51
@BenVoigt - I've jst tested Apple's 'move' to & from a removable drive. If Undo is not possible [drive unmounted], it will either grey out the menu item or start but then error without completing [depending on which way the file was transferred]. In short, it will not let you accidentally Undo the write unless it can be fully undone on both drives.
– Tetsujin
Commented Jan 3, 2023 at 7:20
Isn't it possible to file-scavenge on iOS by jailbreaking the device first? Yes, it's definitely not the easiest approach, but if it's the only way to save some precious files, it might be worth the hassle. (It would certainly be perfectly possible on Android, but I don't have any recent experience with this on iOS.)
– TooTea
Commented Jan 3, 2023 at 10:42
@TooTea - there are purported file scavengers for iOS that run from Mac or Win. idk of one that's successful though. I just tried a demo on my own phone & it couldn't decrypt.
– Tetsujin
Commented Jan 3, 2023 at 11:05

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