Disclosure context

About Knight

Knight is a relatively new ransomware group that emerged in September 2023, operating with primarily financial motivations and demonstrating a focus on targeting critical infrastructure and high-value sectors. The group's origin and specific affiliations remain largely undocumented in public threat intelligence reports, though their operational patterns suggest they operate as an independent entity rather than a established ransomware-as-a-service model. With 48 known victims since their emergence, Knight has shown a preference for targeting organizations across the United States, Brazil, Italy, Spain, and Germany, with particular focus on healthcare, manufacturing, media, and government sectors. Their attack methodology and specific technical capabilities have not been extensively documented by major security firms, though their targeting of healthcare and government entities suggests they employ effective initial access techniques and likely utilize double extortion tactics common among contemporary ransomware groups. While specific notable campaigns have not been widely publicized by CISA, FBI, or major security researchers, the group's consistent activity across multiple countries and high-value sectors indicates sustained operational capability. Knight appears to remain active as of current reporting, though detailed technical analysis and specific law enforcement actions against the group have not been publicly documented by authoritative sources. The group has been linked to 48 public disclosures across our corpus. First observed on a leak site on September 6, 2023; most recent post February 12, 2024. The operation is currently inactive.

Timeline of this disclosure

November 20, 2023Studio D.EL.LA. SRL listed by Knighton the group's public leak site

Data size: 150 GB

Sector and geography

This disclosure adds to ransomware activity in the Media sector, which has 37 disclosures indexed across all operators we track. Geographically, Studio D.EL.LA. SRL is reported in Italy, a country with 496 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.

Ransomware victim disclosure

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Studio D.EL.LA. SRL

Claimed by Knight · listed 2 years ago

150 GB

Data size

30m

Age

since listed · data leaked

Status timeline

Listed
Nov 20, 2023
Data leaked

At a glance

Group: Knight
Status: Data leaked
Country: Italy
Sector: Media
Listed on leak site: Nov 20, 2023
Data size: 150 GB

About the victim

AI dossier — public-source company profile

Studio D.EL.LA. SRL is a data processing centre (Centro Elaborazione Dati) founded in January 2014 in Trieste, Italy. The firm specialises in payroll processing, social security contributions (INPS, INAIL, ENASARCO), and labour consultancy services for over 200 client companies ranging from sole traders to mid-sized firms. The team comprises 9 employees, 1 collaborator, and dedicated labour consultants.

Industry: Payroll Processing & Labour Consultancy
Address: Trieste, Italy
Employees: 10
Founded: 2014

Attack summary

Severity: critical — The group claims 150 GB of exfiltrated data that is already published; the firm processes payroll and personal/financial records for 200+ companies, meaning large-scale PII, regulated financial data (payslips, social security, pension contributions), and identity documents of numerous individuals are at risk — constituting a critical regulated-data breach.

The Knight ransomware group claims to have exfiltrated 150 GB of data from Studio D.EL.LA. SRL, with the disclosure status indicating the data has already been published; proof files including identity documents, personal data screenshots, and financial/INAIL records have been posted.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Personal identity documents (ID scans)
Personal data records
INAIL contribution calculations
Bank/financial records (UniCredit)
Payroll data for 200+ client companies
Employee and contractor records

The group's post references roughly 7 proof files.

What the group claims

http://www.studiodella.it/150GB STEALED.A Trieste si trova lo studio D.EL.LA, specializzato in servizi di elaborazione dati, paghe e contributi e consulenza del lavoro.Lo Studio D.EL.LA è un Centro Elaborazione Dati nato nel gennaio del 2014 a Trieste. Si occupa dell’elaborazione e stampa dei cedolini paga di più di 200 aziende, dalle piccole ditte individuali alle società con svariate decine di dipendenti.Il team è composto da 9 dipendenti e 1 collaboratore, supportati dal Consulente del Lavoro di riferimento.Dal 2015 nello Studio è stato inserito un nuovo Consulente del Lavoro, per dare ancora maggior supporto al personale. Le attività dello Studio comprendono il complesso sistema delle attività e obblighi normativi sia per le aziende che per i privati, in un contesto di continuo aggiornamento e approfondimenti regolamentari, quali: elaborazione paghe, adempimenti contributivi INPS – INAIL – ENASARCO , fondi Pensione Integrative, Cassa Edile, contenzioso del lavoro, controversie individuali e collettive,ristrutturazione e riorganizzazione aziendale, gestione ammortizzatori sociali, cassa integrazione ordinaria e speciale, attivazione procedura di mobilità, assistenza in sede di accertamento previdenziale e fiscale.ID Franco Purini.png 403.36 KBID Franco Purini2.png 120.76 KBunicredit.png 14.98 KBCalcolo Inail.png 33.15 KBextrato.png 27.93 KBdatopersonale1.png 84.11 KBpersonale2.png 79.03 KB

Sources

Source

Indexed 2 years ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.