Cybersecurity AI Intern (6 month co-op)

About Us:   Proofpoint is a global leader in human- and agent-centric cybersecurity. We protect how people, data, and AI agents connect across email, cloud, and collaboration tools. Over 80 of the Fortune 100, 10,000 large enterprises, and millions of smaller organizations trust Proofpoint to stop threats, prevent data loss, and build resilience across their people and AI workflows. Our mission is simple: safeguard the digital world and empower people to work securely and confidently. Join us in our pursuit to defend data and protect people. How We Work: At Proofpoint you’ll be part of a global team that breaks barriers to redefine cybersecurity guided by our BRAVE core values:  Bold in how we dream and innovate Responsive to feedback, challenges and opportunities Accountable for results and best in class outcomes Visionary in future focused problem-solving Exceptional in execution and impact About Us  Proofpoint is a global leader in human- and agent-centric cybersecurity. We protect how people, data, and AI agents connect across email, cloud, and collaboration tools. Over 80 of the Fortune 100, 10,000 large enterprises, and millions of smaller organizations trust Proofpoint to stop threats, prevent data loss, and build resilience across their people and AI workflows. Our mission is simple: safeguard the digital world and empower people to work securely and confidently. Join us in our pursuit to defend data and protect people.    How We Work  At Proofpoint you’ll be part of a global team that breaks barriers to redefine cybersecurity guided by our BRAVE core values:     Bold in how we dream and innovate  Responsive to feedback, challenges and opportunities  Accountable for results and best in class outcomes  Visionary in future focused problem-solving  Exceptional in execution and impact     What you’ll do  Apply LLMs and agentic tooling to email security problems (e.g., phishing analysis, intent extraction, triage workflows)  Build small prototypes and automation (including browser-based/agent workflows where helpful)  Help create and evaluate datasets (including synthetic security datasets)  Document findings and turn them into practical recommendations  What you’ll need to succeed  Background in cybersecurity (coursework or projects; familiarity with phishing/social engineering is a plus)  Comfortable scripting in Python (or willing to ramp quickly); basic Git  Interest in modern AI tools (LLMs, multimodal, prompt/eval workflows) and an experimental mindset  Collaborative mindset - communicates clearly, seeks feedback early, and shares learnings with the team  Nice to have  Any exposure to email security, threat intel, or SOC workflows  Familiarity with basic data handling (CSV/JSON/logs) and simple evaluation metrics  Why Proofpoint? At Proofpoint, we believe that an exceptional career experience includes a comprehensive compensation and benefits package. Here are just a few reasons you’ll love working with us: Competitive compensation Comprehensive benefits Career success on your terms Flexible work environment Annual wellness and community outreach days Always on recognition for your contributions Global collaboration and networking opportunities   Our Culture: Our culture is rooted in values that inspire belonging, empower purpose and drive success-every day, for everyone. We encourage applications from individuals of all backgrounds, experiences, and perspectives. If you need accommodation during the application or interview process, please reach out to accessibility@proofpoint.com.   How to Apply Interested? Submit your application along with any supporting information- we can’t wait to hear from you!