ComputerWeekly reported that Qualys, a supplier of cloud-based security services, is the latest victim of the Accellion file transfer application breach after some of its customer data were published in a Cl0p ransomware gang-operated dark web leak site. Ben Carr, chief information security officer at Qualys, confirmed the incident and said the company used the FTA tool for customer support-related file transfers in an environment not connected to its Qualys Cloud Platform. “Qualys and Accellion conducted a detailed investigation and identified unauthorised access to files hosted on the Accellion FTA server,” Carr said. "As a security company, we continue to look for ways to enhance security and provide the strongest protections for our customers. We have engaged FireEye Mandiant, which also worked with Accellion on the wider investigation,” he added. ImmuniWeb’s Ilia Kolochenko lauded Qualys’ “transparent and professional handling of a security incident,” saying that the “very nature of the incident suggests that the number of affected customers and other third parties is likely very limited. Moreover, sensitive data, such as vulnerability reports or customer passwords, are almost certainly unaffected.”