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Chaos in Teams vishing
July 28, 2026 · Sophos Threat Research · Severity: CRITICAL
Sophos Threat Research reports on a campaign where attackers used Microsoft Teams vishing, custom malware, and remote access tools to facilitate ransomware deployment. The attack chain demonstrates how social engineering and technical tools are combined to breach organizations.
Key Takeaways
- Attackers combine Teams vishing with custom malware for ransomware delivery.
- Remote access tools are used to facilitate initial access and persistence.
- This campaign highlights the evolving threat of social engineering in collaboration platforms.