The Kraken ransomware group is a recently emerged threat actor that was first observed in February 2025, operating with apparent financial motivations and targeting organizations primarily across North America and Europe. Given the group's recent emergence and limited public documentation from major cybersecurity firms and law enforcement agencies, details about their country of origin, affiliations, and operational model remain largely unknown to security researchers. Based on their targeting pattern affecting at least 25 known victims across technology, business services, telecommunications, and manufacturing sectors, the group appears to employ conventional ransomware tactics, though specific details about their initial access vectors, encryption methods, or use of data exfiltration have not been publicly documented by CISA, FBI, or established security research organizations. The group's focus on developed Western markets, particularly the United States, Canada, Spain, Germany, and the United Kingdom, suggests a strategic approach to victim selection, though no major high-profile attacks or significant ransoms have been publicly reported by law enforcement or major incident response firms. As of current reporting, Kraken appears to remain active, though comprehensive threat intelligence on their operations remains limited due to their recent emergence and the absence of detailed public analysis from major cybersecurity organizations. The group has been linked to 25 public disclosures across our corpus. First observed on a leak site on February 9, 2025; most recent post November 13, 2025. The operation is currently inactive.
Sector and geography
This disclosure adds to ransomware activity in the Technology sector, which has 2,524 disclosures indexed across all operators we track. Geographically, www.optyma.co.uk is reported in United Kingdom, a country with 902 ransomware disclosures in our corpus.
How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.
