Serco
Company Details
Linkedin ID:
serco
Website:
Employees number:
31,499
Number of followers:
469,991
NAICS:
5415
Industry Type:
Homepage:
serco.com
IP Addresses:
0
Company ID:
SER_3397065
Scan Status:
In-progress
Serco Company CyberSecurity Posture
serco.com
We bring together the right people, the right technology and the right partners to create innovative solutions that make positive impact and address some of the most urgent and complex challenges facing the modern world. With a focus on serving governments globally, Serco’s services span justice, migration, defence, space, customer services, health, and transport. Our core capabilities include service design and advisory, resourcing, complex programme management, systems integration, case management, engineering, and asset & facilities management.
Serco A.I CyberSecurity Scoring
Serco Risk Score (AI oriented)Between 750 and 799
Serco
Updated:
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Serco Global Score (TPRM)XXXX
Serco
- Instant access to detailed risk factors
- Benchmark vs. industry & size peers
- Vulnerabilities
- Findings
Serco Company CyberSecurity News & History
Past Incidents
2
Attack Types
2
Serco
Data Leak
Rankiteo Explanation
Attack without any consequences
Description: The outsourcing company Serco accidentally shared the email addresses of almost 300 contact tracers recruited to assist in the UK government’s coronavirus “test, track, and trace” strategy. Serco is among the companies that are recruiting, coaching, and managing contact tracers who do not have clinical training. The email addresses were shared when Serco was contacting new recruits about training. The 296 email addresses were exposed when a member of staff at Serco wrote to trainees asking them not to contact the helpdesk if they had questions about training.
Serco
Ransomware
Rankiteo Explanation
Attack threatening the organization's existence
Description: The outsourcing firm Serco was targeted by the Babuk ransomware group. The attackers tried to terminate various security and recovery services as well as database, browser, and email programs and copied more than 1TB of your data. The attack had impacted the company's mainland European operations. The attackers threatened the company with "consequences" if it wouldn’t cooperate.
Serco Company Scoring based on AI Models
Cyber Incidents Likelihood 3 - 6 - 9 months
A.I Risk Score Likelihood 3 - 6 - 9 months
Underwriter Stats for Serco
Incidents vs IT Services and IT Consulting Industry Average (This Year)
No incidents recorded for Serco in 2025.
Incidents vs All-Companies Average (This Year)
No incidents recorded for Serco in 2025.
Incident Types Serco vs IT Services and IT Consulting Industry Avg (This Year)
No incidents recorded for Serco in 2025.
Incident History — Serco (X = Date, Y = Severity)
Serco cyber incidents detection timeline including parent company and subsidiaries
Serco Company Subsidiaries
We bring together the right people, the right technology and the right partners to create innovative solutions that make positive impact and address some of the most urgent and complex challenges facing the modern world. With a focus on serving governments globally, Serco’s services span justice, migration, defence, space, customer services, health, and transport. Our core capabilities include service design and advisory, resourcing, complex programme management, systems integration, case management, engineering, and asset & facilities management.
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Serco CyberSecurity News
August 21, 2025 07:00 AM
Serco connects dispersed workforce through ServiceNow-backed platform
Serco has gone live with a new mobile application aimed at securely connecting its dispersed contractor workforce across Australia.
May 12, 2025 07:00 AM
Serco Named a Top Military Spouse Employer for 2025
The Company has been recognized as a Top Military Spouse Employer for 2025 by Military.com. This accolade highlights Serco's commitment to supporting military...
April 10, 2025 07:00 AM
Investing In Defence: Top UK Defence Stocks of 2025
Here's everything you need to know about investing in UK defence stocks to determine whether they are the right investment for you.
April 04, 2025 07:00 AM
Cybersecurity ‘is your most important risk’
Almost six out of 10 van and truck operators at last month's Microlise transport conference have been impacted by a cybersecurity incident...
February 07, 2025 08:00 AM
CGI awarded ASCEND contract by ESA to support ESA-MAAP platform development
CGI (TSX: GIB.A) (NYSE: GIB) was recently selected to deliver key system engineering and cyber security expertise for the European Space...
January 30, 2025 08:00 AM
Serco to acquire Northrop’s training business for $327M
Tom Watson, chief executive of Serco Inc., describes to us the company's strategy to further expand its military training capabilities and...
January 17, 2025 08:00 AM
Herndon-based Serco is hiring hundreds of fitness experts for Army contract
Herndon, Virginia-based government contractor Serco Inc. will hire hundreds of coaches and physical fitness experts after winning a US Army contract.
November 18, 2024 08:00 AM
British software company Microlise confirms hackers compromised corporate data
Microlise said a cyberattack three weeks ago exposed corporate data. The incident drew attention after customers such as British prison van...
November 07, 2024 08:00 AM
Serco, DHL among firms affected by Microlise cyber attack
Telematics firm Microlise has confirmed that attackers accessed employee data in a hack that saw tracking services for customers disrupted.
Frequently Asked Questions
Explore insights on cybersecurity incidents, risk posture, and Rankiteo's assessments.
Serco CyberSecurity History Information
Official Website of Serco
The official website of Serco is http://www.serco.com/.
Serco’s AI-Generated Cybersecurity Score
According to Rankiteo, Serco’s AI-generated cybersecurity score is 750, reflecting their Fair security posture.
How many security badges does Serco’ have ?
According to Rankiteo, Serco currently holds 0 security badges, indicating that no recognized compliance certifications are currently verified for the organization.
Does Serco have SOC 2 Type 1 certification ?
According to Rankiteo, Serco is not certified under SOC 2 Type 1.
Does Serco have SOC 2 Type 2 certification ?
According to Rankiteo, Serco does not hold a SOC 2 Type 2 certification.
Does Serco comply with GDPR ?
According to Rankiteo, Serco is not listed as GDPR compliant.
Does Serco have PCI DSS certification ?
According to Rankiteo, Serco does not currently maintain PCI DSS compliance.
Does Serco comply with HIPAA ?
According to Rankiteo, Serco is not compliant with HIPAA regulations.
Does Serco have ISO 27001 certification ?
According to Rankiteo,Serco is not certified under ISO 27001, indicating the absence of a formally recognized information security management framework.
Industry Classification of Serco
Serco operates primarily in the IT Services and IT Consulting industry.
Number of Employees at Serco
Serco employs approximately 31,499 people worldwide.
Subsidiaries Owned by Serco
Serco presently has no subsidiaries across any sectors.
Serco’s LinkedIn Followers
Serco’s official LinkedIn profile has approximately 469,991 followers.
NAICS Classification of Serco
Serco is classified under the NAICS code 5415, which corresponds to Computer Systems Design and Related Services.
Serco’s Presence on Crunchbase
No, Serco does not have a profile on Crunchbase.
Serco’s Presence on LinkedIn
Yes, Serco maintains an official LinkedIn profile, which is actively utilized for branding and talent engagement, which can be accessed here: https://www.linkedin.com/company/serco.
Cybersecurity Incidents Involving Serco
As of November 27, 2025, Rankiteo reports that Serco has experienced 2 cybersecurity incidents.
Number of Peer and Competitor Companies
Serco has an estimated 36,305 peer or competitor companies worldwide.
What types of cybersecurity incidents have occurred at Serco ?
Incident Types: The types of cybersecurity incidents that have occurred include Data Leak and Ransomware.
Incident Details
Can you provide details on each incident ?
Title: Serco Ransomware Attack by Babuk Group
Description: The outsourcing firm Serco was targeted by the Babuk ransomware group. The attackers tried to terminate various security and recovery services as well as database, browser, and email programs and copied more than 1TB of your data. The attack had impacted the company's mainland European operations. The attackers threatened the company with 'consequences' if it wouldn’t cooperate.
Type: Ransomware
Threat Actor: Babuk ransomware group
Motivation: Financial
Title: Serco Email Address Leak Incident
Description: The outsourcing company Serco accidentally shared the email addresses of almost 300 contact tracers recruited to assist in the UK government’s coronavirus 'test, track, and trace' strategy. Serco is among the companies that are recruiting, coaching, and managing contact tracers who do not have clinical training. The email addresses were shared when Serco was contacting new recruits about training. The 296 email addresses were exposed when a member of staff at Serco wrote to trainees asking them not to contact the helpdesk if they had questions about training.
Type: Data Leak
Attack Vector: Accidental Sharing
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 SER05323322
Data Compromised: More than 1tb of data
Systems Affected: Security servicesRecovery servicesDatabase programsBrowser programsEmail programs
Operational Impact: Mainland European operations
Incident : Data Leak SER2217291222
Data Compromised: Email Addresses
What types of data are most commonly compromised in incidents ?
Commonly Compromised Data Types: The types of data most commonly compromised in incidents are Email Addresses.
Which entities were affected by each incident ?
Incident : Ransomware SER05323322
Entity Name: Serco
Entity Type: Outsourcing Firm
Industry: Outsourcing
Location: Mainland Europe
Incident : Data Leak SER2217291222
Entity Name: Serco
Entity Type: Outsourcing Company
Industry: Government Services
Location: UK
Customers Affected: 296
Data Breach Information
What type of data was compromised in each breach ?
Incident : Ransomware SER05323322
Data Exfiltration: More than 1TB of data
Incident : Data Leak SER2217291222
Type of Data Compromised: Email Addresses
Number of Records Exposed: 296
Ransomware Information
Was ransomware involved in any of the incidents ?
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 Babuk ransomware group.
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 More than 1TB of data, and Email Addresses.
What was the most significant system affected in an incident ?
Most Significant System Affected: The most significant system affected in an incident was Security servicesRecovery servicesDatabase programsBrowser programsEmail programs.
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 Email Addresses and More than 1TB of data.
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 296.0.
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Latest Global CVEs (Not Company-Specific)
Description
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to versions 19.2.16, 20.3.14, and 21.0.1, there is a XSRF token leakage via protocol-relative URLs in angular HTTP clients. The vulnerability is a Credential Leak by App Logic that leads to the unauthorized disclosure of the Cross-Site Request Forgery (XSRF) token to an attacker-controlled domain. Angular's HttpClient has a built-in XSRF protection mechanism that works by checking if a request URL starts with a protocol (http:// or https://) to determine if it is cross-origin. If the URL starts with protocol-relative URL (//), it is incorrectly treated as a same-origin request, and the XSRF token is automatically added to the X-XSRF-TOKEN header. This issue has been patched in versions 19.2.16, 20.3.14, and 21.0.1. A workaround for this issue involves avoiding using protocol-relative URLs (URLs starting with //) in HttpClient requests. All backend communication URLs should be hardcoded as relative paths (starting with a single /) or fully qualified, trusted absolute URLs.
Risk Information
cvss4
Base: 7.7
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
References
- https://github.com/angular/angular/commit/0276479e7d0e280e0f8d26fa567d3b7aa97a516f
- https://github.com/angular/angular/commit/05fe6686a97fa0bcd3cf157805b3612033f975bc
- https://github.com/angular/angular/commit/3240d856d942727372a705252f7c8c115394a41e
- https://github.com/angular/angular/releases/tag/19.2.16
- https://github.com/angular/angular/releases/tag/20.3.14
- https://github.com/angular/angular/releases/tag/21.0.1
- https://github.com/angular/angular/security/advisories/GHSA-58c5-g7wp-6w37
Description
Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. An Uncontrolled Recursion vulnerability in node-forge versions 1.3.1 and below enables remote, unauthenticated attackers to craft deep ASN.1 structures that trigger unbounded recursive parsing. This leads to a Denial-of-Service (DoS) via stack exhaustion when parsing untrusted DER inputs. This issue has been patched in version 1.3.2.
Risk Information
cvss4
Base: 8.7
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Description
Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. An Integer Overflow vulnerability in node-forge versions 1.3.1 and below enables remote, unauthenticated attackers to craft ASN.1 structures containing OIDs with oversized arcs. These arcs may be decoded as smaller, trusted OIDs due to 32-bit bitwise truncation, enabling the bypass of downstream OID-based security decisions. This issue has been patched in version 1.3.2.
Risk Information
cvss4
Base: 6.3
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Description
Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Prior to versions 7.0.13 and 8.0.2, working with large buffers in Lua scripts can lead to a stack overflow. Users of Lua rules and output scripts may be affected when working with large buffers. This includes a rule passing a large buffer to a Lua script. This issue has been patched in versions 7.0.13 and 8.0.2. A workaround for this issue involves disabling Lua rules and output scripts, or making sure limits, such as stream.depth.reassembly and HTTP response body limits (response-body-limit), are set to less than half the stack size.
Risk Information
cvss3
Base: 7.5
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. In versions from 8.0.0 to before 8.0.2, a NULL dereference can occur when the entropy keyword is used in conjunction with base64_data. This issue has been patched in version 8.0.2. A workaround involves disabling rules that use entropy in conjunction with base64_data.
Risk Information
cvss3
Base: 7.5
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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Incident
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Digital Assets
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:
Network Security
Identify exposed access points, detect misconfigured SSL certificates, and uncover vulnerabilities across the network infrastructure.
SBOM (Software Bill of Materials)
Gain visibility into the software components used within an organization to detect vulnerabilities, manage risk, and ensure supply chain security.
CMDB (Configuration Management Database)
Monitor and manage all IT assets and their configurations to ensure accurate, real-time visibility across the company's technology environment.
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Leverage real-time insights on active threats, malware campaigns, and emerging vulnerabilities to proactively defend against evolving cyberattacks.
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