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DESFA

DESFA Vendor Cyber Rating & Cyber Score

desfa.gr

DESFA, as the Operator of the Greek National Natural Gas System, operates and develops with safety and innovation a wide network of modern infrastructure throughout the country, while paving the way for a greener future. With significant experience and highly qualified personnel, we make a decisive contribution to energy security and the diversification of supply sources in Greece and the wider region, positioning the country as a key energy gateway. We strengthen the competitiveness and extroversion of the Greek economy, having been established as a reliable partner in the development, operation, and management of gas infrastructure in Southeast Europe and beyond. At the same time, we are leading the energy transition, investing in a


DESFA A.I CyberSecurity Scoring

DESFA
Company Information
Website:http://www.desfa.gr
Employees number:511
Number of followers:32,071
NAICS:211
Industry Type:Oil and Gas
Homepage:desfa.gr
DESFA Risk Score (AI oriented)
Between 700 and 749
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DESFAOil and Gas
Updated:
02/04/2026
709/1000
Moderate
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Powered by our proprietary A.I cyber incident model
Insurance prefers TPRM score to calculate premium
DESFA Global Score (TPRM)
xxxx
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DESFAOil and Gas
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Findings

DESFA
DESFAModerate
Current Score
709Ba (MODERATE)
01000
1 incidents
0 avg impact
Incident timeline with MITRE ATT&CK tactics, techniques, and mitigations.
JUNE 2026
711Before Incident
MAY 2026
710Before Incident
APRIL 2026
709Before Incident
MARCH 2026
708Before Incident
FEBRUARY 2026
707Before Incident
JANUARY 2026
707Before Incident
DECEMBER 2025
706Before Incident
NOVEMBER 2025
704Before Incident
OCTOBER 2025
703Before Incident
SEPTEMBER 2025
702Before Incident
AUGUST 2025
701Before Incident
JULY 2025
700Before Incident
AUGUST 2022
748Before Incident
Ransomware
01 Aug 2022DESFA
DESFA SA – Hellenic Gas Transmission System Operator

Ransomware Attack on DESFA

642After Incident
CRITICAL-106
DES204526822
Greece's largest natural gas distributor DESFA suffered a limited scope data breach and IT system outage following a ransomware attack by the Ragnar Locker ransomware group. The attackers attempted to infiltrate its networks and accessed some files and data were accessed but were thwarted by the quick response of its IT team. DESFA deactivated many of its online services to protect client data, however, these services were gradually returned to normal operations as experts worked towards a careful restoration.
INCIDENT DETAILS -
TYPE
Ransomware Attack
IMPACT
Data Compromised: Some files and data were accessedSystems Affected: Online servicesOperational Impact: IT system outage

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