SAZ A.I CyberSecurity Scoring
SAZ
Company Information
Website:http://www.antoniusziekenhuis.nl/
Employees number:4,673
Number of followers:39,408
NAICS:62
Industry Type:Hospitals and Health Care
Homepage:antoniusziekenhuis.nl
SAZ Risk Score (AI oriented)
Between 650 and 699
SAZHospitals and Health Care
Updated:
08/04/2026
08/04/2026
676/1000
Weak
B
SAZ Global Score (TPRM)
xxxx
SAZHospitals and Health Care
Score locked

SAZWeak
Current Score
676B (WEAK)
01000
1 incidents
-97 avg impact
Incident timeline with MITRE ATT&CK tactics, techniques, and mitigations.
JULY 2026
681
JUNE 2026
680
MAY 2026
678
APRIL 2026
773
Ransomware
08 Apr 2026 • SAZ
ChipSoft, Rijnstate Hospital and Antoni van Leeuwenhoek Hospital: Ransomware attack on company that manages Dutch hospitals' patient files
Dutch Healthcare Provider ChipSoft Hit by Ransomware Attack
676
CRITICAL-97
RIJST-CHI1775637791
Dutch Healthcare Provider ChipSoft Hit by Ransomware Attack
ChipSoft, a major healthcare IT provider serving approximately 70% of Dutch hospitals, has suffered a ransomware attack, prompting alerts from Z-Cert, the Dutch healthcare cybersecurity authority. The incident, disclosed on Tuesday, involves "possible unauthorized access," with ChipSoft unable to confirm whether patient data was accessed or exfiltrated. The company is working to mitigate the impact.
ChipSoft’s systems are widely used by hospitals and general practitioners for managing patient records and operational workflows. Z-Cert has advised healthcare institutions to disconnect VPN connections to ChipSoft and monitor network traffic as a precaution.
While the full scope of the attack remains unclear, concerns center on patient portals online platforms where individuals access their medical records. Multiple hospitals using ChipSoft’s systems have reported no disruptions or data breaches. Rijnstate Hospital in Arnhem, Frisus MC in Heerenveen, Antoni van Leeuwenhoek Hospital in Amsterdam, and Franciscus Hospital in Rotterdam have all stated that their patient data remains secure, with some attributing this to isolated or well-protected environments.
The incident highlights ongoing cybersecurity risks in the healthcare sector, where critical infrastructure and sensitive data remain prime targets for ransomware attacks. Investigations into the breach are ongoing.
INCIDENT DETAILS -
TYPE
IMPACT
DATA BREACH
REFERENCES
MARCH 2026
773
FEBRUARY 2026
773
JANUARY 2026
773
DECEMBER 2025
773
NOVEMBER 2025
773
OCTOBER 2025
773
SEPTEMBER 2025
773
AUGUST 2025
773
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