hacker attempt using <normal email name>@icioud.com

I received threatening hacker email which appeared in my iCloud "junk" folder. The hacker was saying they had sent it from my email iCloud account, and when viewed it clearly looked as if from <my email name>@icloud.com when i right clicked on the sender email name. Only when i looked at the full widow pane did i seen in <my email name>@icioud.com. Presume this is why it came into my junk folder.

I have forwarded the email to Apple reportphising@apple.com and assume they are looking into it.

It is quite deceiving.