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This month, we welcome Eric Gagnon, Team Lead of Adversary Simulation, Purple Teaming, and Tradecraft Development at Desjardins. The conversation covers a wide range of topics related to cybersecurity, including purple teaming, red teaming, blue teaming, and Eric's journey in cybersecurity. Eric shares insights on certifications, threat hunting, cloud security, and the importance of knowledge exchange between red and blue teams. He also discusses the use of AI in cybersecurity and the need to stay sharp in the field.

Takeaways

• Purple teaming involves collaborative operations to exchange ideas, evaluate security controls, and test out tactics, techniques, and procedures (TTPs) real threat actors use.
• Certifications in cybersecurity, such as Offensive Security Certified Professional (OSCP) and Offensive Security Certified Expert (OSCE), provide valuable knowledge and an edge in the field.
• Threat hunting involves looking for a granular activity that may indicate a compromise, filtering out the noise, and focusing on the suspicious behavior of threat actors.
• Cloud security requires automation, cyber hygiene, and visibility, focusing on prioritizing techniques and testing them against the enterprise's environment.
• Knowledge exchange between red and blue teams during a purple team engagement is essential and should include a common language, centralized documentation, and reporting against the MITRE ATT&CK framework.
• Staying sharp in cybersecurity involves continuous learning, participation in CTFs, engaging with passionate individuals, and challenging oneself through talks, podcasts, and specialized training.

Chapters

00:00
Introduction to Purple Teaming and Cybersecurity Journey

08:09
Certifications and Insights in Cybersecurity

15:08
Threat Hunting and Granular Activity Detection

35:02
Knowledge Exchange in Purple Teaming: Red and Blue Collaboration

39:57
Staying Sharp in Cybersecurity: Continuous Learning and Engagement

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