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WinRAR flaw lets hackers run programs when you open RAR archives
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this post was submitted on 19 Aug 2023
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That's, quite ironically, a pretty ignorant opinion. There are areas where WinRAR is stronger than 7zip.
The person you replied to never mentioned 7-Zip, and there's forks and other programs that are probably just as strong in the same areas.
"probably"
The commenter implied that there's a tool which is better than WinRAR in everything and therefore there can't possibly be a reason to use WinRAR. Which application is it then?
I'd need to know the areas you consider 7-Zip to be stronger in first, because I can't think of anything myself.
As an example, RAR provides parity records which allows recovery of large amounts of compressed data in case of data corruption. 7zip can lose all its content if one bit is flipped.
RAR provides much more support for underlying file system support which makes it more suitable as an archival tool. Things like NTFS hard links, streams, ACLs, all three timestamps. 7zip doesn't support that.
WinRAR in general has way more niche features for advanced use cases, while 7zip focuses on the basics.