Theoretically you probably would have to erase the data completely from the disk. Deleting in legal terms means gone. However in no real world example will be checked if you zeroed out the data or just deleted the pointers to it.
However things are different if you trash the HDD. Then you have to be sure that nothing is accessible anymore.
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Theoretically you probably would have to erase the data completely from the disk. Deleting in legal terms means gone. However in no real world example will be checked if you zeroed out the data or just deleted the pointers to it.
However things are different if you trash the HDD. Then you have to be sure that nothing is accessible anymore.