Is there a way to access the data of a column declared UNUSED ?

Hello

I know that the only command that can be passed is drop the unused column. Until we drop the column the data are still present in the database. As we would like to use this feature to speed up anonymization (set unused and then add an empty column) we want to be sure that there is no way to access the not dropped data inside the database.

Can someone give us the information? We tried to get information from Oracle support, but they do not answer.

Thank you for your help