We are reviewing our compression tools in order to finally replace it for a better one; our main concern is the encryption used.
We have been recommended in various occasion the open source product 7-zip over commercial products.
We use WinZip 9.0 and WinRar 4.20; we know they are old, so now we are considering 7-zip product. However, some question regarding this product in order to decide to make the change and wanted EE experience on the following:
Is there more than one provider or developer of 7-Zip?
Which is a reliable source for download 7-Zip?
Being an open-source is it more vulnerable than commercial version?