I have read that iOS data protection ensures most of the files to be stored encrypted. However, I saw someone insisting (elcomsoft blog) very few files are not encrypted. Are app’s cache files or tmp files not stored encrypted? For example, are safari history.db file and cache files stored in the flash encrypted?

Hi, I have a question regarding data protection in ios 7. Qustion 1 : if the passcode is turned off, and data protection is disabled, in this case, will the files in nand flash still be encrypted? Or will it just disable all hardware encryption and all the files in nand flash will be decrypted and stored in plain text? The security paper says even the NSFileProtectionNone class has some level of hardware encryption, but my question is if someone disable the passcode and disable the data protection, will the newly created file still be encrypted using UID key so the chiping-off the nand flash and reading off the nand directly does not work due to encryption even though the passcode is disabled and data protection is not active? Question 2 : if they are still encrypted, do the files in the storage have the data protection NSFileProtectionNone class if the passcode is disabled and data protection is inactive?