The unknown ransomware group that hacked into Reddit's servers back in February is now threatening to release stolen data if Reddit does not roll back its planned API changes.

When the hack took place, no currently known group took credit, but yesterday a ransomware group by the name of Black Cat claimed responsibility for compromising  80GB worth of data through a phishing attack.

Black Cat says that it will make the stolen data public, unless Reddit pays 4.5 million and withdraws the API pricing changes that will go into effect on July 1.

Black Cat claims to have "interesting confidential data that no company would really want publicly known." This also includes information on how Reddit tracks users and censors people.

Reddit issued a statement shortly after this attack stating that no user passwords, accounts, or credit card details were impacted, but internal documentation, code, and internal dashboards and business systems were obtained.

Reddit CEO Steve Huffman has said that Reddit has no plans to change its new API business model in light of the negative feedback and record protests.

Black Cat does anticipate leaking data, as it's likely that Reddit won't comply.