Missed incidents, persistent threats, and response gaps: Insights from compromise assessment projects

Kaspersky's 2025 compromise assessments revealed that many organizations struggle with undetected threats, with a significant portion of high-severity incidents remaining hidden for months or even years. A substantial percentage of these missed threats were only identified through proactive assessments, highlighting gaps in existing security tools' alerting capabilities. The analysis also noted that attackers frequently utilize remote management tools and living-off-the-land binaries, and that malicious files can persist even in backups.