Information Security Intern - Summer 2025

Who is Grant Thornton?

Grant Thornton is a collaborative, entrepreneurial firm on the move! As part of a dynamic, global organization of more than 53,000 people serving clients in more than 135 countries, we have the agility and focus it takes to be a leader. 

Founded in Chicago in 1924, Grant Thornton is the U.S. member firm of Grant Thornton International Ltd, one of the world’s leading organizations of independent audit, tax and advisory firms. Grant Thornton has revenue in excess of $1.7 billion and operates 59 offices across the United States with more than 565 partners and 8,000+ employees.

Grant Thornton works with a broad range of publicly and privately held companies, government agencies, financial institutions, and civic and religious organizations.  Core industries served include consumer and industrial products, financial services, not-for-profit, private equity, and technology. Grant Thornton focuses on serving dynamic organizations that pursue growth holistically – whether through revenue improvement, leadership, mission fulfillment or innovation.

We are committed to capitalizing on our strengths and serving dynamic organizations that share our values and drive.  Our global values of collaboration, leadership, excellence, agility, respect, and responsibility (“CLEARR”) guide our behaviors and fuel our ambition to be the firm that makes a difference every day. We put people first, and that is what sets us apart.

We provide companies with the guidance that they need to help run their businesses, establish robust internal controls, use information effectively and improve performance.  These services include compliance, consulting services, information technology solutions, forensic accounting and investigative services, recovery and reorganization, tax preparation, and valuation, to name a few.

 

What is Information Technology?

The Information Technology (IT) organization at Grant Thornton plays a crucial role in supporting and enhancing the firm's operations. By providing robust and reliable IT services, the team ensures that all professionals have the tools and resources they need to address business challenges effectively. Our inclusive approach influences the work of everyone in the firm, providing each individual with the opportunity to contribute. Information Technology enhances our strengths through cross-line and cross-functional representation, as well as go-to-market experience, to serve our clients in transformative ways now and in the future.

IT embodies our inclusive, needs-focused, resourceful, and technology-forward approach to solving business problems. This includes teams and roles such as IT Governance, Enterprise Architecture, Program/Project Management Office, Platform Management, and Infrastructure & Operations. IT empowers our people to identify internal or client-facing business problems and needs, and then leverage emerging technologies to plan, build, test, and scale high-quality solutions.

 

Position Summary:

Information Technology Interns will participate in an 8-week program in Information Security, Cyber Defense.

 

Information Security 

The Information Security (InfoSec) team is responsible for protecting GT and our clients from evolving security threats. Our team, including employees and consultants, works daily to safeguard our network, data, and end users. In the event of a security incident, InfoSec identifies, mitigates, and remediates risks to the firm, its clients, and employees. Part of the InfoSec team is the Cyber Defense team. The Cyber Defense team is a specialized group focused on safeguarding digital assets from cyber threats. Comprising experts in network security, threat intelligence, incident response, and vulnerability management, the team actively identifies, mitigates, and responds to security risks. Using advanced tools, they monitor network traffic, prevent unauthorized access, and ensure data confidentiality, integrity, and availability. Constantly adapting to emerging threats, the team fortifies defenses, enforces security policies, and maintains a resilient security posture, instilling confidence in stakeholders.

This position will focus on the area of Cyber Defense Operations.

Cyber Defense Operations: This role primarily focuses on supporting the Cyber Defense team’s Operational Readiness. Responsibilities include assisting with the triage of threats and vulnerabilities, providing analysis and awareness communications, and communicating threat and risk issues across the organization. Additionally, the role involves contributing to operational management activities to ensure the efficiency of cyber defense operations, coordinating renewals for essential tools and services, and collabo