A WinRar zero-day vulnerability tracked as CVE-2023-38831 was actively exploited to install malware when clicking on harmless files in an archive, allowing the hackers to breach online cryptocurrency trading accounts.
It depends. The RAR5 format used by newer WinRAR versions (the “old” one is still supported just well) can have smaller archives than 7z, but the opposite is also true. Still, yes, WinRAR is in my experience faster and more stable.
(Note that “as small as possible” is not usually the most relevant point. The best compression is currently reached with the ZPAQ format, but using it with maximum compression settings is painfully slow.)
It depends. The RAR5 format used by newer WinRAR versions (the “old” one is still supported just well) can have smaller archives than 7z, but the opposite is also true. Still, yes, WinRAR is in my experience faster and more stable.
(Note that “as small as possible” is not usually the most relevant point. The best compression is currently reached with the ZPAQ format, but using it with maximum compression settings is painfully slow.)