Pierce County Library System Company Cyber Security Posture
mypcls.orgThe nationally acclaimed Pierce County Library System serves 600,000 people throughout Pierce County with 19 libraries and online services. The system is the fourth largest in the state and is funded primarily through property taxes. People may choose from more than one million books, movies and other materials, as well as nearly half a million online/downloadable materials. Pierce County Library is committed to directing services in three primary areas: learning, enjoyment and community connection. Its services and programs spark success for Pierce County residents. More than a million people visit Pierce County Libraries each year. The Library provides services and programs directly to people in adult care facilities or who are homebound, and to children in child care centers and schools. Pierce County Libraries are located at Anderson Island, Bonney Lake, Buckley, DuPont, Eatonville, Fife, Gig Harbor, Graham, Key Center, Lakewood (temporarily closed), Milton/Edgewood, Orting, Parkland/Spanaway, Pierce County Library Administrative Center, South Hill, Steilacoom, Summit, Sumner, Tillicum and University Place. Pierce County Library is an independent municipal corporation and operates as a junior taxing district. Social Media Policy: https://mypcls.org/wp-content/uploads/2023/12/Social-Media_20231213_Final.pdf
PCLS Company Details
pierceco-library-system
251 employees
1359.0
519
Libraries
mypcls.org
Scan still pending
PIE_1528575
In-progress
PCLS Risk Score (AI oriented)Between 900 and 1000
This score is AI-generated and less favored by cyber insurers, who prefer the TPRM score.
PCLS Global Score.png)
Pierce County Library System 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 |
Pierce County Library System Company Cyber Security News & History
| Entity | Type | Severity | Impact | Seen | Url ID | Details | View |
|---|---|---|---|---|---|---|---|
| Pierce County Library System | Ransomware | 100 | 7/2025 | PIE352071125 | Link | ||
Rankiteo Explanation : Attack threatening the organization’s existenceDescription: The Pierce County Library System confirmed a data breach in April 2025 that compromised names and dates of birth of 336,826 people. The cyber attack disrupted many library services, including access to the library catalog, self-checkout, applications for library cards, printing, and access to library computers. Ransomware gang Inc took credit for the breach, claiming to have stolen 1.94 TB of data, including driver’s licenses, passports, and internal library documents. The attack involved ransomware, and the investigation determined unauthorized access to PCLS’ environment between April 15 and April 21, 2025. PCLS is offering eligible victims one year of free credit monitoring through IDX. | |||||||
Pierce County Library System Company Subsidiaries
The nationally acclaimed Pierce County Library System serves 600,000 people throughout Pierce County with 19 libraries and online services. The system is the fourth largest in the state and is funded primarily through property taxes. People may choose from more than one million books, movies and other materials, as well as nearly half a million online/downloadable materials. Pierce County Library is committed to directing services in three primary areas: learning, enjoyment and community connection. Its services and programs spark success for Pierce County residents. More than a million people visit Pierce County Libraries each year. The Library provides services and programs directly to people in adult care facilities or who are homebound, and to children in child care centers and schools. Pierce County Libraries are located at Anderson Island, Bonney Lake, Buckley, DuPont, Eatonville, Fife, Gig Harbor, Graham, Key Center, Lakewood (temporarily closed), Milton/Edgewood, Orting, Parkland/Spanaway, Pierce County Library Administrative Center, South Hill, Steilacoom, Summit, Sumner, Tillicum and University Place. Pierce County Library is an independent municipal corporation and operates as a junior taxing district. Social Media Policy: https://mypcls.org/wp-content/uploads/2023/12/Social-Media_20231213_Final.pdf
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PCLS Cyber Security News
The Pierce County libraries system was hacked, information stolen. What we know
Pierce County library system hacked in a ransomware attack. Data theft confirmed, services impacted, and investigations underway.
Library confirms ‘cybersecurity event’ caused outage
The Pierce County Library system confirmed Tuesday that a “cybersecurity event” caused a multiweek outage affecting services at its branches ...
The toll of Seattle library’s ransomware attack
Among those affected were nearly 5000 current and former library employees who had personal information, including financial and medical, ...
Levy helps to fund Seattle Public Library's massive e-circulation collection
(The Center Square) – Tax dollars helped the Seattle Public Library garner more books, e-books and audio books last year, making it one of ...
What the Seattle Public Library cyberattack means for you
Due to a cybersecurity breach over the weekend, Seattle Public Libraries (SPL) has taken its systems offline at all 27 of its locations.
Why did ransomware hackers target Seattle Public Library?
Though the motive of the attack on the British Library appears to have been purely monetary, it functioned as, effectively, an attack on access ...
Seattle and King County library systems rank at top of global digital lenders as growth continues
The Seattle Public Library and King County Library System in its top five libraries for digital checkouts in 2017.
PCLS Similar Companies
Frequently Asked Questions
Explore insights on cybersecurity incidents, risk posture, and Rankiteo's assessments.
PCLS CyberSecurity History Information
How many cyber incidents has PCLS faced?
Total Incidents: According to Rankiteo, PCLS has faced 1 incident in the past.
What types of cybersecurity incidents have occurred at PCLS?
Incident Types: The types of cybersecurity incidents that have occurred incident Ransomware.
How does PCLS detect and respond to cybersecurity incidents?
Detection and Response: The company detects and responds to cybersecurity incidents through third party assistance with IDX for free credit monitoring and communication strategy with Public notification and offering free credit monitoring.
Incident Details
Can you provide details on each incident?
Incident : Ransomware
Title: Pierce County Library System Data Breach
Description: A data breach occurred at the Pierce County Library System in April 2025, compromising names and dates of birth of 336,826 individuals. The breach disrupted many library services and was claimed by the Inc ransomware gang, which stole 1.94 TB of data.
Date Detected: April 2025
Date Publicly Disclosed: May 2025
Type: Ransomware
Attack Vector: Spear Phishing, Exploiting known vulnerabilities in software
Threat Actor: Inc Ransomware
Motivation: Financial Gain
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 Ransomware.
Impact of the Incidents
What was the impact of each incident?
Incident : Ransomware PIE352071125
Data Compromised: Names, Dates of Birth, Driver’s Licenses, Passports, Internal Library Documents
Systems Affected: Library Catalog, Self-Checkout, Library Card Applications, Printing, Library Computers
Downtime: April and May 2025
Operational Impact: Disruption of library services
What types of data are most commonly compromised in incidents?
Commonly Compromised Data Types: The types of data most commonly compromised in incidents are Names, Dates of Birth, Driver’s Licenses, Passports and Internal Library Documents.
Which entities were affected by each incident?
Incident : Ransomware PIE352071125
Entity Type: Public Library
Industry: Education
Location: Pierce County, Washington
Size: 19 libraries and an online catalog
Customers Affected: 336,826
Response to the Incidents
What measures were taken in response to each incident?
Incident : Ransomware PIE352071125
Third Party Assistance: IDX for free credit monitoring
Communication Strategy: Public notification and offering free credit monitoring
How does the company involve third-party assistance in incident response?
Third-Party Assistance: The company involves third-party assistance in incident response through IDX for free credit monitoring.
Data Breach Information
What type of data was compromised in each breach?
Incident : Ransomware PIE352071125
Type of Data Compromised: Names, Dates of Birth, Driver’s Licenses, Passports, Internal Library Documents
Number of Records Exposed: 336,826
Sensitivity of Data: High
Data Exfiltration: 1.94 TB
File Types Exposed: Images, Documents
Personally Identifiable Information: Names, Dates of Birth, Driver’s Licenses, Passports
Ransomware Information
Was ransomware involved in any of the incidents?
References
Where can I find more information about each incident?
Incident : Ransomware PIE352071125
Source: Comparitech
Where can stakeholders find additional resources on cybersecurity best practices?
Additional Resources: Stakeholders can find additional resources on cybersecurity best practices at and Source: Comparitech.
Investigation Status
What is the current status of the investigation for each incident?
Incident : Ransomware PIE352071125
Investigation Status: Ongoing
How does the company communicate the status of incident investigations to stakeholders?
Communication of Investigation Status: The company communicates the status of incident investigations to stakeholders through was Public notification and offering free credit monitoring.
Stakeholder and Customer Advisories
Were there any advisories issued to stakeholders or customers for each incident?
Incident : Ransomware PIE352071125
Stakeholder Advisories: Public notification and offering free credit monitoring
Customer Advisories: Public notification and offering free credit monitoring
What advisories does the company provide to stakeholders and customers following an incident?
Advisories Provided: The company provides the following advisories to stakeholders and customers following an incident: were Public notification and offering free credit monitoring and Public notification and offering free credit monitoring.
Post-Incident Analysis
What is the company's process for conducting post-incident analysis?
Post-Incident Analysis Process: The company's process for conducting post-incident analysis is described as IDX for free credit monitoring.
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 Inc Ransomware.
Incident Details
What was the most recent incident detected?
Most Recent Incident Detected: The most recent incident detected was on April 2025.
What was the most recent incident publicly disclosed?
Most Recent Incident Publicly Disclosed: The most recent incident publicly disclosed was on May 2025.
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 Names, Dates of Birth, Driver’s Licenses, Passports and Internal Library Documents.
What was the most significant system affected in an incident?
Most Significant System Affected: The most significant system affected in an incident were Library Catalog, Self-Checkout, Library Card Applications, Printing, Library Computers.
Response to the Incidents
What third-party assistance was involved in the most recent incident?
Third-Party Assistance in Most Recent Incident: The third-party assistance involved in the most recent incident was IDX for free credit monitoring.
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 Names, Dates of Birth, Driver’s Licenses, Passports and Internal Library Documents.
What was the number of records exposed in the most significant breach?
Number of Records Exposed in Most Significant Breach: The number of records exposed in the most significant breach was 336.8K.
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 Comparitech.
Investigation Status
What is the current status of the most recent investigation?
Current Status of Most Recent Investigation: The current status of the most recent investigation is Ongoing.
Stakeholder and Customer Advisories
What was the most recent stakeholder advisory issued?
Most Recent Stakeholder Advisory: The most recent stakeholder advisory issued was Public notification and offering free credit monitoring.
What was the most recent customer advisory issued?
Most Recent Customer Advisory: The most recent customer advisory issued was was an Public notification and offering free credit monitoring.
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.
