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Analyze » Urssaf Caisse nationale » URS1773973471

Incident Score: Analysis & Impact (URS1773973471)

The details regarding individual company incidents & reports gives you full view from every side.

Rankiteo Score Impact Analysis

Rankiteo Incident Impact-101
Company Score Before Incident768 / 1000
Company Score After Incident667 / 1000
INCIDENT NUMBERURS1773973471
Type of Cyber IncidentBreach
ATTACK VECTORNA
DATA EXPOSEDPersonal data of up to...
INCIDENT DATE17/11/2025
STATUSOngoing

Key Highlights From The Incident Analysis

  • Timeline of Urssaf Caisse nationale's Breach and lateral movement inside company's environment.
  • Overview of affected data sets, including SSNs and PHI, and why they materially increase incident severity.
  • How Rankiteo’s incident engine converts technical details into a normalized incident score.
  • How this cyber incident impacts Urssaf Caisse nationale Rankiteo cyber scoring and cyber rating.
  • Rankiteo’s MITRE ATT&CK correlation analysis for this incident, with associated confidence level.

Full Incident Analysis Transcript

In this Rankiteo incident briefing, we review the Urssaf Caisse nationale breach identified under incident ID URS1773973471.

The analysis begins with a detailed overview of Urssaf Caisse nationale's information like the linkedin page: https://www.linkedin.com/company/urssaf-caisse-nationale, the number of followers: 60000, the industry type: Government Administration and the number of employees: 1435 employees

After the initial compromise, the video explains how Rankiteo's incident engine converts technical details into a normalized incident score. The incident score before the incident was 768 and after the incident was 667 with a difference of -101 which is could be a good indicator of the severity and impact of the incident.

In the next step of the video, we will analyze in more details the incident and the impact it had on Urssaf Caisse nationale and their customers.

On 14 November 2023, Urssaf (Pajemploi service) disclosed Data Breach issues under the banner "Urssaf Cyberattack Affecting Pajemploi Service".

France’s social charges body, Urssaf, disclosed a significant cyberattack targeting the Pajemploi service, which facilitates payments to childminders.

The disruption is felt across the environment, affecting Pajemploi service, and exposing Personal data of up to 1.2 million employees, with nearly 1.2 million records at risk.

In response, teams activated the incident response plan, moved swiftly to contain the threat with measures like Swift action to contain the breach, and began remediation that includes Reinforcing security measures, and stakeholders are being briefed through Direct contact with affected individuals, dedicated email and phone line.

The case underscores how Ongoing, and recommending next steps like Affected individuals advised to be cautious of phishing scams, with advisories going out to stakeholders covering Potential phishing scams warned.

Finally, we try to match the incident with the MITRE ATT&CK framework to see if there is any correlation between the incident and the MITRE ATT&CK framework.

The MITRE ATT&CK framework is a knowledge base of techniques and sub-techniques that are used to describe the tactics and procedures of cyber adversaries. It is a powerful tool for understanding the threat landscape and for developing effective defense strategies.

MITRE ATT&CK® Correlation Analysis

Rankiteo's analysis has identified several MITRE ATT&CK tactics and techniques associated with this incident, each with varying levels of confidence based on available evidence. Under the Initial Access tactic, the analysis identified Exploit Public-Facing Application (T1190) with moderate confidence (60%), supported by evidence indicating cyberattack targeting the Pajemploi service and Trusted Relationship (T1199) with moderate confidence (50%), supported by evidence indicating pajemploi service facilitates payments to childminders. Under the Credential Access tactic, the analysis identified Unsecured Credentials: Credentials In Files (T1552.001) with lower confidence (40%), supported by evidence indicating pajemploi and accreditation numbers compromised. Under the Collection tactic, the analysis identified Data from Local System (T1005) with moderate to high confidence (80%), supported by evidence indicating full names, dates of birth, addresses, social security numbers exposed and Data from Information Repositories (T1213) with moderate to high confidence (70%), supported by evidence indicating personal data of up to 1.2 million employees compromised. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), supported by evidence indicating data breach affecting 1.2 million users and Transfer Data to Cloud Account (T1537) with moderate confidence (50%), supported by evidence indicating potential phishing scams warned; data may be sold to fraudsters. Under the Impact tactic, the analysis identified Data Destruction (T1485) with lower confidence (30%), supported by evidence indicating reinforcing security measures post-breach and Data Manipulation: Transmitted Data Manipulation (T1565.002) with moderate confidence (60%), supported by evidence indicating potential phishing scams using leaked data to deceive victims. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.

Initial Access
Exploit Public-Facing Application (60%)
Trusted Relationship (50%)
Credential Access
Unsecured Credentials: Credentials In Files (40%)
Collection
Data from Local System (80%)
Data from Information Repositories (70%)
Exfiltration
Exfiltration Over C2 Channel (70%)
Transfer Data to Cloud Account (50%)
Impact
Data Destruction (30%)
Data Manipulation: Transmitted Data Manipulation (60%)

Sources & References