The Toxcar Cyber Team has claimed responsibility for a data
leak involving Mastercard, asserting that the attack targeted the U.S. site and
providing screenshots as purported evidence. They have also been linked to the
sale of an undetectable ransomware designed to bypass major antivirus software.
Additionally, the group has shared the source code of Elusive Stealer, a data
theft malware. Their activities highlight a focus on data breaches and malware
distribution within the cyber threat landscape.