Mandiant's Cyber Snapshot Report highlights human and systemic failures in successful intrusions

Focus on Human and Systemic Failures

Mandiant's Cyber Snapshot Report reveals that the majority of successful cyber intrusions are due to fundamental human and systemic failures, rather than solely machine-speed attacks. This perspective comes from Mandiant's frontline observations in cybersecurity.

The M-Trends 2026 report supports this, showing exploits as the most common initial infection vector for the sixth consecutive year at 32%. Voice phishing has risen to second place at 11%, and prior compromise is identified as the primary confirmed vector for ransomware-related incidents.

Shift to Resilience-Focused Strategies

The report suggests that leaders should move from prevention-focused strategies to an operating model that anticipates compromise. This model recognizes that exploitation is inevitable and advocates for a continuous, intelligence-led feedback cycle in defense. Business and security leaders are advised to rethink resilience strategies and train cross-functional teams, while also addressing technical debt and organizational security culture.

Hardening Architecture and Containing Impact

Accepting that intrusions will occur shifts the security goal from keeping attackers out to containing their impact. Ransomware operators frequently target recovery paths like virtualization hypervisors, backup environments, and privileged access management (PAM) vaults to prevent restoration and increase pressure for negotiation.

Hardening architecture involves implementing strict credential separation and air-gapped isolated recovery environments (IREs). This helps ensure that a compromise in the production network cannot destroy backups. Containing the blast radius also requires securing soft entry points beyond traditional data centers, including executives and high-value personnel, whose personal digital footprints are increasingly targeted by threat actors.

Expanding Protection to the Extended Ecosystem

A resilient security posture needs to expand to protect this extended ecosystem. This includes integrating digital footprint management with traditional executive protection programs to cover personal devices, home networks, and family members, which can serve as entry points into critical corporate infrastructure.