SegWit Wallets unsecure?

[OriginalBankster]

I read this on a blog:

"The answer is that segwit uses what is, in my professional opinion, an unthinkably nasty hack: according to the Bitcoin protocol, all segwit transactions can be spent by anybody with no proof of authorization. That means that literally anyone can make a transaction that spends the bitcoins in a segwit address. The "witness data" (which is the rules for who's allowed to claim the outputs, and the proof that the rules were followed on the inputs that claim the outputs) is moved out of the main block and replaced with a simple "anyone can spend me, there are no rules and no proofs," and it's up to miners to know what the rules really are, ignore the "anyone can spend me" instruction, and instead apply the rules from the witness data."

can someone explain further?
do i need to change my wallet in my ledger nano S from Segwit to Legacy?

[pooya87]

I read this on a blog:

- stop reading "a" blog. people say all kinds of crap on the internet. try looking for more reliable sources.
- share the link

in my professional opinion,

who was the author, what is his history that he calls himself a "professional".

according to the Bitcoin protocol, all segwit transactions can be spent by anybody with no proof of authorization.

this is bullshit.
~6 months ago Litecoin activated the same SegWit
~5 months ago the developer places $1 MM worth of LTC in a SegWit transaction and called out publicly to everyone who claims this FUD to steal it.
https://www.reddit.com/r/litecoin/comments/6azeu1/1mm_segwit_bounty/
https://twitter.com/satoshilite/status/914372293232660481?lang=en

That means that literally anyone can make a transaction that spends the bitcoins in a segwit address.

maybe some "real" experts around here can explain about the technical part of it to you but i want to ask you to ask this "self claimed expert" to give us an example.
there has been so many SegWit transactions on bitcoin network. ask him to go spend one of them and show us how it is done!!

[OriginalBankster]

thank you for your help.
here is the original source:
https://steemit.com/bitcoin/@modprobe/i-looked-into-segwit-and-here-s-what-i-saw