Cook County Company Cyber Security Posture
cookcountyil.govToni Preckwinkle is the 35th president of the Cook County Board of Commissioners, an office she has held since 2010. A dedicated and effective public servant, President Preckwinkle has worked tirelessly and collaboratively to reshape County government through increased fiscal responsibility, transparency and improved services. As the top executive in Cook County, President Preckwinkle oversees one of the nationโs largest public health and hospitals systems and one of the nationโs largest criminal justice systems. President Preckwinkle is a lifelong advocate for equity and equality, and through her work as president, has fought to improve health care access, bring increased fairness to the criminal justice system and expand employment training opportunities for some of the Countyโs most disadvantaged youth. Leveraging more than 30 years of political experience and leadership, President Preckwinkle has restored credibility to County government, solving for more than $2.1 billion in budget deficits, cutting $851 million in expenditures and passing balanced budgets each year of her tenure. Through the Presidentโs leadership, Cook County used the Affordable Care Act to create CountyCare, a managed care program for Medicaid-eligible residents which now has about 330,000 members. President Preckwinkle is a nationally recognized leader in the drive to reduce unnecessary and costly detention of non-violent offenders in the criminal justice system. The pretrial population at the Cook County Jail has been reduced by more than 30 percent since she took office in 2010 and in 2017, the MacArthur Foundation awarded Cook County one of its highly competitive Safety and Justice grants in recognition of the Countyโs progress in criminal justice reform and to support its continued efforts. At the same time President Preckwinkle has successfully fought for juvenile justice reform, reducing the number of children tried as adults and the population in the Juvenile Temporary Detention.
Cook County Company Details
cook-county
2350 employees
4438.0
922
Government Administration
cookcountyil.gov
Scan still pending
COO_1940379
In-progress
Cook County Risk Score (AI oriented)Between 900 and 1000
This score is AI-generated and less favored by cyber insurers, who prefer the TPRM score.
Cook County Global Score.png)
Cook County Company Scoring based on AI Models
| Model Name | Date | Description | Current Score Difference | Score |
|---|---|---|---|---|
| AVERAGE-Industry | 03-12-2025 | This score represents the average cybersecurity rating of companies already scanned within the same industry. It provides a benchmark to compare an individual company's security posture against its industry peers. | N/A | Between 900 and 1000 |
Cook County Company Cyber Security News & History
| Entity | Type | Severity | Impact | Seen | Url ID | Details | View |
|---|---|---|---|---|---|---|---|
| Cook County | Data Leak | 85 | 3 | 07/2018 | COO021101122 | Link | |
Rankiteo Explanation : Attack with significant impact with internal employee data leaksDescription: Cook County failed to protect the public's personal information. The private information of anyone issued a traffic citation in the state of Illinois has been readily available to anyone who asks for it. Personal information such as birthdays, addresses, license plate numbers and more. They were able to pull up sensitive information of public officials including Chicago Mayor Rahm Emanuel and Cook County Sheriff Tom Dart. CBS also found information for everyone including celebrity athletes, federal judges, police officers and domestic violence victims. | |||||||
| Cook County | Ransomware | 75 | 2 | 07/2020 | COO14216123 | Link | |
Rankiteo Explanation : Attack limited on finance or reputationDescription: Cooke County in Texas was apparently hit by a gang using REvil ransomware. Cooke County had a population of 38,437 at the last US census in 2010 and the seat of the county is in Gainesville. Malicious attackers had posted screenshots of what they claim are documents and data from the county's police department on the dark web. | |||||||
Cook County Company Subsidiaries
Toni Preckwinkle is the 35th president of the Cook County Board of Commissioners, an office she has held since 2010. A dedicated and effective public servant, President Preckwinkle has worked tirelessly and collaboratively to reshape County government through increased fiscal responsibility, transparency and improved services. As the top executive in Cook County, President Preckwinkle oversees one of the nationโs largest public health and hospitals systems and one of the nationโs largest criminal justice systems. President Preckwinkle is a lifelong advocate for equity and equality, and through her work as president, has fought to improve health care access, bring increased fairness to the criminal justice system and expand employment training opportunities for some of the Countyโs most disadvantaged youth. Leveraging more than 30 years of political experience and leadership, President Preckwinkle has restored credibility to County government, solving for more than $2.1 billion in budget deficits, cutting $851 million in expenditures and passing balanced budgets each year of her tenure. Through the Presidentโs leadership, Cook County used the Affordable Care Act to create CountyCare, a managed care program for Medicaid-eligible residents which now has about 330,000 members. President Preckwinkle is a nationally recognized leader in the drive to reduce unnecessary and costly detention of non-violent offenders in the criminal justice system. The pretrial population at the Cook County Jail has been reduced by more than 30 percent since she took office in 2010 and in 2017, the MacArthur Foundation awarded Cook County one of its highly competitive Safety and Justice grants in recognition of the Countyโs progress in criminal justice reform and to support its continued efforts. At the same time President Preckwinkle has successfully fought for juvenile justice reform, reducing the number of children tried as adults and the population in the Juvenile Temporary Detention.
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Cook County Cyber Security News
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Frequently Asked Questions
Explore insights on cybersecurity incidents, risk posture, and Rankiteo's assessments.
Cook County CyberSecurity History Information
How many cyber incidents has Cook County faced?
Total Incidents: According to Rankiteo, Cook County has faced 2 incidents in the past.
What types of cybersecurity incidents have occurred at Cook County?
Incident Types: The types of cybersecurity incidents that have occurred incidents Ransomware and Data Leak.
Incident Details
Can you provide details on each incident?
Incident : Ransomware
Title: Cooke County Ransomware Attack
Description: Cooke County in Texas was apparently hit by a gang using REvil ransomware. Malicious attackers had posted screenshots of what they claim are documents and data from the county's police department on the dark web.
Type: Ransomware
Threat Actor: REvil ransomware gang
Motivation: Financial gain
Incident : Data Breach
Title: Cook County Traffic Citation Data Breach
Description: Cook County failed to protect the public's personal information. The private information of anyone issued a traffic citation in the state of Illinois has been readily available to anyone who asks for it. Personal information such as birthdays, addresses, license plate numbers and more were exposed. Sensitive information of public officials, including Chicago Mayor Rahm Emanuel and Cook County Sheriff Tom Dart, was accessible. Information for other individuals, including celebrity athletes, federal judges, police officers, and domestic violence victims, was also found.
Type: Data Breach
What are the most common types of attacks the company has faced?
Common Attack Types: The most common types of attacks the company has faced is Data Leak.
Impact of the Incidents
What was the impact of each incident?
Incident : Ransomware COO14216123
Data Compromised: Screenshots of documents and data from the county's police department
Incident : Data Breach COO021101122
Data Compromised: birthdays, addresses, license plate numbers
What types of data are most commonly compromised in incidents?
Commonly Compromised Data Types: The types of data most commonly compromised in incidents are Police department documents and data, birthdays, addresses and license plate numbers.
Which entities were affected by each incident?
Incident : Ransomware COO14216123
Entity Type: Government
Industry: Public Administration
Location: Texas, USA
Size: 38,437 residents
Incident : Data Breach COO021101122
Entity Type: Government
Industry: Public Administration
Location: Illinois, USA
Data Breach Information
What type of data was compromised in each breach?
Incident : Ransomware COO14216123
Type of Data Compromised: Police department documents and data
Data Exfiltration: True
Incident : Data Breach COO021101122
Type of Data Compromised: birthdays, addresses, license plate numbers
Sensitivity of Data: High
Personally Identifiable Information: True
Ransomware Information
Was ransomware involved in any of the incidents?
References
Where can I find more information about each incident?
Incident : Data Breach COO021101122
Source: CBS
Where can stakeholders find additional resources on cybersecurity best practices?
Additional Resources: Stakeholders can find additional resources on cybersecurity best practices at and Source: CBS.
Initial Access Broker
How did the initial access broker gain entry for each incident?
Incident : Data Breach COO021101122
High Value Targets: Chicago Mayor Rahm Emanuel, Cook County Sheriff Tom Dart
Data Sold on Dark Web: Chicago Mayor Rahm Emanuel, Cook County Sheriff Tom Dart
Additional Questions
General Information
Who was the attacking group in the last incident?
Last Attacking Group: The attacking group in the last incident was an REvil ransomware gang.
Impact of the Incidents
What was the most significant data compromised in an incident?
Most Significant Data Compromised: The most significant data compromised in an incident were Screenshots of documents and data from the county's police department, birthdays, addresses and license plate numbers.
Data Breach Information
What was the most sensitive data compromised in a breach?
Most Sensitive Data Compromised: The most sensitive data compromised in a breach were Screenshots of documents and data from the county's police department, birthdays, addresses and license plate numbers.
References
What is the most recent source of information about an incident?
Most Recent Source: The most recent source of information about an incident is CBS.
What Do We Measure?
Every week, Rankiteo analyzes billions of signals to give organizations a sharper, faster view of emerging risks. With deeper, more actionable intelligence at their fingertips, security teams can outpace threat actors, respond instantly to Zero-Day attacks, and dramatically shrink their risk exposure window.
These are some of the factors we use to calculate the overall score:
Identify exposed access points, detect misconfigured SSL certificates, and uncover vulnerabilities across the network infrastructure.
Gain visibility into the software components used within an organization to detect vulnerabilities, manage risk, and ensure supply chain security.
Monitor and manage all IT assets and their configurations to ensure accurate, real-time visibility across the company's technology environment.
Leverage real-time insights on active threats, malware campaigns, and emerging vulnerabilities to proactively defend against evolving cyberattacks.
