"You may not distribute, publicly display, publicly perform, or publicly digitally perform the Derivative Work with any technological measures that control access or use of the Work in a manner inconsistent with the terms of this License Agreement."
So password protected .zip files do not qualify as "ShareAlike".
Please share "alike". Without password protection.
https://creativecommons.org/licenses/by-sa/2.5/legalcode
"You may not distribute, publicly display, publicly perform, or publicly digitally perform the Derivative Work with any technological measures that control access or use of the Work in a manner inconsistent with the terms of this License Agreement."
So password protected .zip files do not qualify as "ShareAlike".
Please share "alike". Without password protection.