Twitter Blue: how it works
Twitter Blue verification differs from normal verification.
An officially Verified account means Twitter’s team has vetted a person, and deems them important enough – or at such significant risk of impersonation – to authenticate their profile.
This designation is reserved for important figures from the news, entertainment or political industries.
On their profiles and tweets, a Verified Account is indicated by a blue checkmark.
Twitter Blue will give you the blue “verified” checkmark.
That means it’s possible that accounts that impersonate others can have a blue checkmark – although this would be against Twitter rules if not declared “parody,” ultimately resulting in a ban.