There are a few websites that claim they can enable you to hack someone's DeviantART account, but I highly doubt they will actually work. The best method to hack someone's DeviantART account is to find a way to access their email account.
This, of course, is pretty immoral and is not something that I recommend.
Why would someone want to hack a DeviantART account?I'm not entirely sure of the benefits of hacking someone's DeviantART account. Most people interested in that type of hacking would rather be able to hack email accounts to snoop around on other people's private lives.
Is there a way to do it?
As I mentioned earlier in the post, the best method to hack someone's DeviantART account is to find a way to access their email account. Then you could simply request a password reset to that account, and you're in! The issue with this, however, is working out how to access their email account.
The only method I can logically think of is if you are able to guess their email account's security question. Of course, this is only likely if you know the person in question. I wouldn't advise using any sort of "hacking" website as the majority (if not all) of them won't work.
I would advise that you don't try to hack someone's DeviantART account. It's not a very nice thing to do, plus you could ruin a friendship if the account belongs to someone you know and you're caught.