Compressing what themselves? Compress then encrypt leaks information about the data being encrypted if an adversary can affect some part of the data being encrypted. If the data is at rest and repeated encryptions are needed , then this isn't a concern.
Compressing what themselves? Compress then encrypt leaks information about the data being encrypted if an adversary can affect some part of the data being encrypted. If the data is at rest and repeated encryptions are needed , then this isn't a concern.