San Francisco, California - Twitter Blue is shaping up to be a critical error on the social media platform's part, and pharmaceutical company Eli Lilly and Co. just learned that the hard way after an impersonator paid for a blue check mark, and proceeded to cause a financial crash of epic proportions in the process.

Elon Musk and co. have instated and then pulled the plug on Twitter Blue.

As it turns out, it seems someone overlooked the grave dangers of allowing people to pay for an illustrious blue checkmark. Perhaps this stemmed from Musk's firing of Yoel Roth, Twitter’s former head of trust and safety.

Now, Eli Lilly and Company just might have to pay for Twitter's baffling mistake after it appears someone decided to make or change the name of their Twitter account to that of the company's name, and proceeded to pay for that all-important checkmark via Twitter Blue.

The Imposter account, which was not actually associated with the pharmaceutical company at all, then tweeted something that would later stun the stock markets: "We are excited to announce insulin is free now." It appears the tweet, which was not actually sent by Eli Lilly and Co., was taken quite seriously, leading the company's stock to crash, potentially costing them billions.

Though the imposter's account has lost its blue checkmark and is now private, it serves as a reminder that there was probably a reason Twitter didn't allow for pay-to-play verification options in the first place.