Week in review: Acrobat Reader flaw exploited, Claude Mythos offensive capabilities and limits

This weekly cybersecurity roundup summarizes recent news across vulnerabilities, active exploits, malware campaigns, data breaches, and law-enforcement actions: critical zero-days exploited in the wild (Adobe Acrobat Reader, multiple Microsoft Defender flaws), malware distribution via hijacked downloads (STX RAT), breaches exposing customer data (Booking.com, Basic-Fit), and takedowns of phishing and fraud infrastructure, alongside broader industry analysis on AI agent security, vulnerability data quality, and zero-trust maturity.