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Cybersecurity Risk Management and Strategy Disclosure | 12 Months Ended
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Sep. 27, 2025
Cybersecurity Risk Management, Strategy, and Governance [Line Items] |
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block] | Information security and data privacy risk management, including cybersecurity, is integrated into and aligns with our Enterprise Risk Management ("ERM") processes. Our information protection and privacy program incorporates administrative, technical and physical safeguards, and incorporates various cybersecurity and internal control frameworks to protect information assets, manage data privacy and ensure compliance with laws and industry standards. We leverage the National Institute of Security and Technology ("NIST") Cybersecurity Framework ("CSF"), among others, to provide a strategic and adaptable approach to managing evolving cyber risks. This framework assists in assessing and improving our security posture by identifying vulnerabilities and prioritizing investments or improvements. We perform cybersecurity risk assessments of the third-party vendors we utilize and have processes to identify cybersecurity risks posed by using third-party systems. We also request our third-party vendors to promptly notify us of any actual or suspected breach that could impact our data or operations. We maintain a cybersecurity incident response plan to assist in the assessment and management of cybersecurity incidents. The plan includes tactical playbooks and crisis response procedures based on incident severity and materiality impact. These crisis response procedures include escalation to the Audit Committee and the full Board of Directors, where appropriate. Our incident response plan is periodically tested through tabletop exercises, the results of which are reported to the Audit Committee.
Cybersecurity Risk Management Processes Integrated [Flag] | true
Cybersecurity Risk Management Processes Integrated [Text Block] | Information security and data privacy risk management, including cybersecurity, is integrated into and aligns with our Enterprise Risk Management ("ERM") processes. Our information protection and privacy program incorporates administrative, technical and physical safeguards, and incorporates various cybersecurity and internal control frameworks to protect information assets, manage data privacy and ensure compliance with laws and industry standards. We perform cybersecurity risk assessments of the third-party vendors we utilize and have processes to identify cybersecurity risks posed by using third-party systems. We also request our third-party vendors to promptly notify us of any actual or suspected breach that could impact our data or operations. We maintain a cybersecurity incident response plan to assist in the assessment and management of cybersecurity incidents. The plan includes tactical playbooks and crisis response procedures based on incident severity and materiality impact. These crisis response procedures include escalation to the Audit Committee and the full Board of Directors, where appropriate. Our incident response plan is periodically tested through tabletop exercises, the results of which are reported to the Audit Committee.
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag] | true
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag] | true
Cybersecurity Risk Board of Directors Oversight [Text Block] | Our executive-level Security Steering Committee provides oversight of cybersecurity, data governance and privacy programs. This Committee is made up of select executives including the General Counsel, Chief Administrative Officer and Secretary ("CAO"); Chief Operating Officer; and CITO. The Security Steering Committee provides oversight and ensures program alignment to Plexus' strategic goals. The committee serves to provide awareness and guidance to prioritization, organizational alignment and enablement of resources to minimize risk to Plexus' operations, brand and reputation. The Security Steering Committee, through the CISO and the CITO, reports to a broader Global Technology Steering Committee, which includes the President and CEO and Chief Financial Officer. On at least an annual basis, and on topical information security matters more frequently as determined by the Board of Directors or management, the Audit Committee reviews the effectiveness of IT risk governance and management, including those relating to business continuity, cybersecurity, malware, regulatory compliance and data management. These reviews also include reviewing the appropriateness of resources (people and financial) devoted to information technology requirements. The CITO and CISO also brief the Audit Committee quarterly on cybersecurity matters, including specific risks, mitigation plans, risk management and governance. The Audit Committee reports to the full Board of Directors on these discussions as appropriate. Further, the Board of Directors is briefed periodically (at least annually) on our overall IT strategy, including cybersecurity, to ensure alignment with the business, review of assets and infrastructure, and trends, key risks and initiatives.
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block] | Our executive-level Security Steering Committee provides oversight of cybersecurity, data governance and privacy programs. This Committee is made up of select executives including the General Counsel, Chief Administrative Officer and Secretary ("CAO"); Chief Operating Officer; and CITO. The Security Steering Committee provides oversight and ensures program alignment to Plexus' strategic goals. The committee serves to provide awareness and guidance to prioritization, organizational alignment and enablement of resources to minimize risk to Plexus' operations, brand and reputation. The Security Steering Committee, through the CISO and the CITO, reports to a broader Global Technology Steering Committee, which includes the President and CEO and Chief Financial Officer.
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block] | On at least an annual basis, and on topical information security matters more frequently as determined by the Board of Directors or management, the Audit Committee reviews the effectiveness of IT risk governance and management, including those relating to business continuity, cybersecurity, malware, regulatory compliance and data management. These reviews also include reviewing the appropriateness of resources (people and financial) devoted to information technology requirements. The CITO and CISO also brief the Audit Committee quarterly on cybersecurity matters, including specific risks, mitigation plans, risk management and governance. The Audit Committee reports to the full Board of Directors on these discussions as appropriate. Further, the Board of Directors is briefed periodically (at least annually) on our overall IT strategy, including cybersecurity, to ensure alignment with the business, review of assets and infrastructure, and trends, key risks and initiatives.
Cybersecurity Risk Role of Management [Text Block] | Our Chief Information & Technology Officer ("CITO"), who reports directly to the President and Chief Executive Officer ("CEO"), directs our global information technology vision and long-term strategies. Under the direction of the CITO, the Chief Information Security Officer (CISO) leads our enterprise-wide cybersecurity program and oversees a dedicated global cybersecurity team that monitors, assesses and mitigates material risks from various cybersecurity threats. This team leads critical efforts to drive readiness, awareness and learning across the organization, including management of a 24x7x365 Cybersecurity Operations Center for detection and response capabilities; maintaining a cybersecurity awareness learning management system; and third party assessments and audits, penetration tests and "red team" assessments to evaluate the effectiveness of cybersecurity controls and identify areas of cybersecurity risk. The CISO is a seasoned cybersecurity expert with over 18 years of cybersecurity experience combined within the United States Department of Defense and Electronic Manufacturing Services industry. The Company's CISO holds industry-recognized cybersecurity certifications, a Bachelor of Science degree in Cybersecurity and a Master of Science degree in Cybersecurity Management and Policy. Our executive-level Security Steering Committee provides oversight of cybersecurity, data governance and privacy programs. This Committee is made up of select executives including the General Counsel, Chief Administrative Officer and Secretary ("CAO"); Chief Operating Officer; and CITO. The Security Steering Committee provides oversight and ensures program alignment to Plexus' strategic goals. The committee serves to provide awareness and guidance to prioritization, organizational alignment and enablement of resources to minimize risk to Plexus' operations, brand and reputation. The Security Steering Committee, through the CISO and the CITO, reports to a broader Global Technology Steering Committee, which includes the President and CEO and Chief Financial Officer. On at least an annual basis, and on topical information security matters more frequently as determined by the Board of Directors or management, the Audit Committee reviews the effectiveness of IT risk governance and management, including those relating to business continuity, cybersecurity, malware, regulatory compliance and data management. These reviews also include reviewing the appropriateness of resources (people and financial) devoted to information technology requirements. The CITO and CISO also brief the Audit Committee quarterly on cybersecurity matters, including specific risks, mitigation plans, risk management and governance. The Audit Committee reports to the full Board of Directors on these discussions as appropriate. Further, the Board of Directors is briefed periodically (at least annually) on our overall IT strategy, including cybersecurity, to ensure alignment with the business, review of assets and infrastructure, and trends, key risks and initiatives.
Cybersecurity Risk Management Positions or Committees Responsible [Flag] | true
Cybersecurity Risk Management Positions or Committees Responsible [Text Block] | Our Chief Information & Technology Officer ("CITO"), who reports directly to the President and Chief Executive Officer ("CEO"), directs our global information technology vision and long-term strategies. Under the direction of the CITO, the Chief Information Security Officer (CISO) leads our enterprise-wide cybersecurity program and oversees a dedicated global cybersecurity team that monitors, assesses and mitigates material risks from various cybersecurity threats. This team leads critical efforts to drive readiness, awareness and learning across the organization, including management of a 24x7x365 Cybersecurity Operations Center for detection and response capabilities; maintaining a cybersecurity awareness learning management system; and third party assessments and audits, penetration tests and "red team" assessments to evaluate the effectiveness of cybersecurity controls and identify areas of cybersecurity risk. The CISO is a seasoned cybersecurity expert with over 18 years of cybersecurity experience combined within the United States Department of Defense and Electronic Manufacturing Services industry. The Company's CISO holds industry-recognized cybersecurity certifications, a Bachelor of Science degree in Cybersecurity and a Master of Science degree in Cybersecurity Management and Policy. Our executive-level Security Steering Committee provides oversight of cybersecurity, data governance and privacy programs. This Committee is made up of select executives including the General Counsel, Chief Administrative Officer and Secretary ("CAO"); Chief Operating Officer; and CITO. The Security Steering Committee provides oversight and ensures program alignment to Plexus' strategic goals. The committee serves to provide awareness and guidance to prioritization, organizational alignment and enablement of resources to minimize risk to Plexus' operations, brand and reputation. The Security Steering Committee, through the CISO and the CITO, reports to a broader Global Technology Steering Committee, which includes the President and CEO and Chief Financial Officer.
Cybersecurity Risk Management Expertise of Management Responsible [Text Block] | The CISO is a seasoned cybersecurity expert with over 18 years of cybersecurity experience combined within the United States Department of Defense and Electronic Manufacturing Services industry. The Company's CISO holds industry-recognized cybersecurity certifications, a Bachelor of Science degree in Cybersecurity and a Master of Science degree in Cybersecurity Management and Policy.
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block] | The Security Steering Committee, through the CISO and the CITO, reports to a broader Global Technology Steering Committee, which includes the President and CEO and Chief Financial Officer.
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag] | true

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