In November, he introduced a new version of Twitter Blue subscriptions with blue check marks for $8 per month that erased any line between verified individuals and paid accounts. That led to a slew of people impersonating celebrities and corporations, which caused mayhem and prompted Twitter to pause signups for Twitter Blue. Esther Crawford, a product lead at Twitter, said Saturday in a tweet that "we've added a review step before applying a blue checkmark to an account as one of our new steps to combat impersonation." When asked by a Twitter user if granting the blue check mark would involve verifying a user by way of an ID, Crawford replied, "We don't have ID verification in this update." Before Musk came up with the idea of combining the blue check mark with the Twitter Blue subscription service, the verification process had traditionally involved tasks like submitting a government-issued ID and offering evidence that you were a "prominently recognized individual."