Cite your source. ALWAYS. That should prevent any copyright issues. Also I don't really understand what you mean by "receiving news" since if it's just plainly reading, there's no issue with it, reposting? As I said, cite the source before you do to avoid issues, if you were to paraphrase, still post the source just to make sure. Just don't claim any articles not from you. Ofc, if you want to create you're own article about the news, afaik that isn't really copyright, since it is "technically" written by you.

Depends.

At minimum you'll have to cite the source.

Strictly speaking, copy pasting major parts or even a whole article without permission from the rights holder could still be a breach of copyright even while linking the source. Google "Fair Use" in relation to copyright to see what's okay to do without permission from the original author and what isn't.

Better cite the source. Because if it is not your original idea or concept and just borrowing from someone else's, you need to acknowledge where you get it from. Citing your source is one option not to accuse of having plagiarized content. Because even if you paraphrase the statement, still you don't own that idea.

Yes but the last time I checked the copyright are mostly used by the US crypto related site but to be totally sure I think it will be better to check the copyright viewpoint of site to avoid future complication or you can use site that it content is available "under the Creative Commons Attribution-ShareAlike License" which people are free to share,copy etc. However, this forum dont support copy and paste.

You’ve currently got at least one post that is plagiarized by forum standards, whereby intent is shown by changing a wee part of the text, meaning there is no wiggle room to claim that you forgot to quote the source. You’ve probably got a few minutes to make amends, before it crops-up on the mod’s queue of reported posts.

Plagiarism on this forum implies that you will be banned (and all the accounts you may have), and you will not be allowed to create any more accounts here (only to appeal on Meta, with slim to no chances).

Even performing a copy/paste and adding the source is generally considered a cero value post if reported.

Edit: OP's name is similar to a well known (banned) forum member, although clearly not him

Would I have any difficulties if I had set my source to https://cointelegraph.com/ and changed the article and posted on my site?

Starting a website with news is hard because the rules are often crazy. Many websites have their own requirements such as adding a hyperlink in and writing about them in the first paragraph of the article (this applies additionally to not copying the info, of course). Some are against people using their info without their permission at all! Unfortunately, it seems that Cointelegraph is one of those strict websites. According to their rules,
That being said, I'm sure many websites actually ignore this, rewrite their news and post as their own (sometimes giving the link and sometimes pretending like it's their own content). And I don't think that Cointelegraph would actually enforce that rule on the copyright infringement or otherwise there would not be all these low-level crypto news websites. But I'm no expert on the topic, so you should be careful and do your research.

If they just fully copy paste the article or news, it was plagriarism. And they may violate the rules without inciting the source and can be possibly penalized from it.
 The website should be reported as being plagriarized content then the content will be removed and there is corresponding penalties if the bitcoin site news has proven to break the rules.
 
 If it is about the bitcoin news, I usually saw some websites with the same content but those of course has some source to begin with. Or quoting some of important facts and they are making a comments about it. That's what I have noticed.

Maybe in my opinion, receiving or just seeing the news will not be a problem at all, but if you copy and intend to make the same news as what you saw before, then all of that will cause copyright on the news. So if you want to repeat this news it is better to add a few verses so that it is not the same as the news you have seen about Bitcoin, maybe that way I am sure it will not be subject to copyright from this news site.