Last week, Coinbase ( COIN -1.07%) told customers about a security breach in which criminals accessed personal data from around 1% of its monthly transacting users. The popular cryptocurrency exchange estimates the hack could cost it between $180 million and $400 million, per its May 14 SEC filing.

Crypto sleuth ZachXBT has revealed that a suspected threat actor behind Coinbase scams is mocking him on-chain.

Coinbase's S&P 500 debut comes after the company disclosed a cyberattack and is facing an investigation by the U.S. Securities and Exchange Commission.

While crypto enthusiasts view the inclusion of Coinbase in the S&P 500 as cause for celebration, the critics and naysayers are already out in force. Here's what they are saying.

Coinbase Global shares fell on Thursday after the crypto exchange said a recent cyberattack that breached customer account data could cost up the company up to $400 million.

Scammers demanded $20 million for customer data obtained by bribing insiders. Coinbase stock price tumbled Thursday following the incident.

The company is the first of its kind to join the landmark index. Cryptocurrency skeptics and fans alike say that gives the virtual tender a stamp of legitimacy, but can’t agree if it’s warranted.

Coinbase often touts that it is 'building the financial system of the future,' but last week the cryptocurrency exchange made a disclosure that highlighted how vulnerable it was to a very old-fashioned form of crime.

Shares of Coinbase rose sharply Tuesday on news that it would be included in the benchmark S&P 500 this month.