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ShadowTalk: Powered by ReliaQuest: Daily Summaries Delivered
by ReliaQuest
Want to hear what industry experts really think about the cyber threats they face? ShadowTalk is a weekly cybersecurity podcast, made by practitioners for practitioners, featuring analytical insights on the latest cybersecurity news and threat research. Threat Intelligence Analyst John Dilgen brings extensive expertise in cyber threat intelligence and incident response, specializing in researching threats impacting ReliaQuest customers. John and his guests provide practical perspectives on the week’s top cybersecurity news and share knowledge and best practices to help businesses mitigate the most pertinent cyber threats. With over 1,000 customers worldwide and 1,200 teammates across six global operating centers, ReliaQuest delivers security outcomes for the most trusted enterprise brands in the world.
Latest Episodes
The most recent episodes — sign up to get AI-powered summaries of each one.
- 1 weeks ago24 min
QuartzLine: A PDF Viewer Deploying a Backdoor at Scale
In this episode of ShadowTalk, John Dilgen and Tehman Tariq examine QuartzLine, a malware campaign disguised as a legitimate, signed Windows PDF viewer. The application works as advertised while quietly maintaining persistence, stealing browser data, and waiting for instructions to deploy backdoors at scale. The discussion covers the campaign’s malvertising delivery chain, its evasion techniques, and why blocked C2 traffic should be treated as a confirmed compromise. Learn what defenders can ...
- 2 weeks ago34 min
AI Attacks From the Front Lines
In this episode of ShadowTalk, John Dilgen and Alexandra Moore break down a campaign where AI carried out major parts of an intrusion. The conversation covers the attack flow, the feedback loop, and what defenders should change now. Attackers have gone agentic, gaining speed, scale, and lower skill barriers. Resources: https://linktr.ee/ReliaQuestShadowTalk John Dilgen: Cyber Threat Intelligence Analyst at ReliaQuest, where he specializes in researching cyber threats impacting ReliaQuest cust...
- 3 weeks ago30 min
DPRK Insider Threats: How Remote-Worker Tactics Are Evolving
Security leaders should be asking a hard question: if a remote hire looks legitimate at every checkpoint, what would expose the operation? Security operations is the defense layer of the business, and the teams defending it need AI to move faster across the full environment. In this episode of ShadowTalk, Daxton Wirth and John Dilgen share practical guidance on what to verify, where teams miss inconsistencies, and how HR, onboarding, identity, and security can investigate together before acce...
- Sep 30, 202633 min
CISO Wisdom: Turning Security Investments Into Measurable Risk Reduction
Security teams are contending with more tools, alerts, and vulnerabilities than ever—but volume does not necessarily equal security. Jigar Shah joins us to discuss how organizations can automate repetitive work, prioritize vulnerabilities based on business risk, build identity-driven security strategies, and connect cybersecurity investments to measurable outcomes. With two decades of leadership experience across healthcare, financial services, retail, and consulting, Jigar brings a business-...
- Sep 23, 202628 min
Fake NDAs, Real Money: Inside the M&A Social Engineering Playbook
In this episode, we examine the Phantom Deal campaign, in which threat actors used publicly available details about companies’ acquisition histories, subsidiaries, executives, and employees to create convincing fake M&A scenarios. The goal: persuade employees to initiate large financial transfers while keeping conversations off corporate communication channels. We also cover a recent series of zero-day disclosures affecting major endpoint-security and Windows products. These vulnerabiliti...
- Sep 16, 202631 min
From Vulnerability Research to Domain Admin in Minutes
AI is changing the economics of cyberattacks. In this episode, we examine how a suspected threat actor used AI agents to accelerate PaperCut vulnerability research, exploit development, target identification, and post-compromise activity—moving from initial access to domain administrator access in as little as seven minutes. We also explore recent reporting on large-scale AI-model distillation campaigns by China-based companies and what the increasing availability of frontier-level AI capabil...
- Sep 9, 202629 min
One Empty Field: The Email Security Bypass Letting Attackers Impersonate Your Executives
Organizations rely on Microsoft 365's RejectDirectSend control to block internal email spoofing—but a structural gap lets attackers walk right past it. With nothing more than a basic Python script and an empty envelope sender, threat actors are impersonating executives, IT support, and finance teams to launch Business Email Compromise, payment fraud, and follow-on account takeover. Join hosts Alexandra Moore and John Dilgen as they discuss: How an empty email header field bypasses RejectDirec...
- Sep 2, 202628 min
From Data Dumps to Critical Findings: The New Era of Data Extortion
Threat actors do not see old email archives, forgotten shared drives, and outdated CRM exports as clutter. They see them as searchable inventory. With AI-assisted analysis, attackers can rapidly identify sensitive communications, regulatory exposure, customer relationships, and credentials buried in stolen data. Join hosts John Dilgen and Brandon Tirado as they discuss: Why data theft has become a central component of modern extortion operationsHow AI and automation are helping attackers anal...
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About ShadowTalk: Powered by ReliaQuest
Want to hear what industry experts really think about the cyber threats they face? ShadowTalk is a weekly cybersecurity podcast, made by practitioners for practitioners, featuring analytical insights on the latest cybersecurity news and threat research. Threat Intelligence Analyst John Dilgen brings extensive expertise in cyber threat intelligence and incident response, specializing in researching threats impacting ReliaQuest customers. John and his guests provide practical perspectives on the week’s top cybersecurity news and share knowledge and best practices to help businesses mitigate the most pertinent cyber threats. With over 1,000 customers worldwide and 1,200 teammates across six global operating centers, ReliaQuest delivers security outcomes for the most trusted enterprise brands in the world.
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