So bitcoin itself is almost impossible to hack and it is extremely hack proof, the hacking of bitcoin comes from breach in wallets and transaction processes.
what does the bold part mean?!!
and this statement is misleading if not wrong. bitcoin IS unhackable period. 9 years of secure bitcoin after millions of hackers trying to hack it is the proof of that.
all the things you read has nothing to do with wallets nor whatever that bold part means. the reasons for all of them is one thing:
human error.
for example when you don't use cold storage and instead store your bitcoin on your desktop and then download some malware you can't say it was a "breach in my wallet". the reason was you not being careful.