"Ransomware Group Claims Attack on Constellation Software"

The Alphv/BlackCat ransomware group has recently claimed responsibility for a cyberattack that Canadian software company Constellation Software disclosed last week.  Toronto-based Constellation Software is a company specializing in the acquisition of vertical market software firms.  On May 4, Constellation Software revealed that it fell victim to a cyberattack that impacted "a limited number of its IT infrastructure systems."  The attack occurred on April 3, 2023.  According to the company, the compromised systems were "related to internal financial reporting and related data storage by the operating groups and businesses of Constellation." The company noted that the attack did not impact the IT systems of its operating groups and businesses and did not affect its business operations.  The company says that a limited amount of personal information was compromised during the incident, along with a limited amount of business partner data.  The Alphv/BlackCat ransomware gang last week posted on its leak site an entry about the incident, claiming to have stolen over one terabyte of data from the company.  The company has not shared information on the number of potentially impacted individuals.

SecurityWeek reports: "Ransomware Group Claims Attack on Constellation Software"