**Nozelesn** is an obscure ransomware group that first emerged in December 2018 with apparent financial motivations, though limited public documentation exists about their operations. The group's origin and affiliations remain largely unknown, with no confirmed country of origin or established links to other ransomware families documented by major security firms or law enforcement agencies. Their attack methodology and technical capabilities are not well-documented in public threat intelligence reports, with no detailed analysis available from CISA, FBI, or prominent security researchers regarding their initial access vectors, encryption methods, or whether they employ data exfiltration tactics. Based on available data, the group has targeted at least one victim in the United States government facilities sector, though no major high-profile campaigns or significant ransoms have been publicly reported by security researchers. The current operational status of nozelesn remains unclear due to the limited intelligence available about this group's activities beyond their initial emergence period. The group has been linked to 1 public disclosures across our corpus. First observed on a leak site on December 17, 2018. The operation is currently inactive.
Sector and geography
This disclosure adds to ransomware activity in the Government Facilities sector, which has 84 disclosures indexed across all operators we track. Geographically, Town of Jupiter is reported in United States, a country with 7,392 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.
