Microsoft Threatens Security Researcher | Palo Alto VPN Exploited | Google Insider Trading Case

Microsoft's dispute with a former security researcher takes a dramatic turn as the company raises the possibility of criminal action over the publication of proof-of-concept code for unpatched zero-day vulnerabilities. David Shipley examines the escalating conflict between Microsoft and "Nightmare Eclipse," the criticism from prominent security researchers including Kevin Beaumont and Katie Moussouris, and what the controversy could mean for the future of vulnerability disclosure. Cybersecurity Today would like to thank Material Security for sponsoring this podcast. Material Security provides faster, more complete detection and response for email, identity, and data threats inside Google Workspace and Microsoft 365. You can contact them at material[dot]security. The episode also explores a new category of insider risk after U.S. prosecutors charged Google security engineer Michael Spagnuolo with allegedly using confidential Google search trend data to earn more than $1.2 million on the prediction market Polymarket. The case highlights how prediction markets may create unexpected incentives around non-financial corporate information. Also covered: active exploitation of Palo Alto Networks' GlobalProtect VPN authentication bypass vulnerability CVE-2026-0257, now added to CISA's Known Exploited Vulnerabilities (KEV) catalogue, and a malware campaign that abuses legitimate ChatGPT sharing pages and Google Ads to trick users into downloading malicious software. Researchers also report similar abuse of Anthropic's Claude Artifacts feature. Chapters 00:00 Top Headlines Rundown 00:26 Microsoft vs Zero-Day Researcher 01:28 Responsible Disclosure Fallout 03:32 Why This Dispute Matters 04:32 Polymarket Insider Trading Case 06:07 Prediction Markets Create New Insider Risks 06:55 Palo Alto VPN Authentication Bypass 08:25 ChatGPT Pages Used to Deliver Malware 09:51 Wrap Up and Sign Off Cybersecurity Today is Canada's leading daily cybersecurity news podcast, covering ransomware, vulnerabilities, nation-state threats, cybercrime, security research, privacy, and critical infrastructure security. #Cybersecurity #Microsoft #PaloAltoNetworks #ChatGPT #OpenAI #Google #Polymarket #ThreatIntelligence #InfoSec #CyberSecurityToday