BROWSER ATTACKS SURGE IN 2026 VERIZON DBIR

Browser-based attacks have become a primary vector for threat actors, according to the latest DBIR findings. Phishing campaigns, shadow AI deployment, malicious browser extensions, and credential harvesting now frequently target users at the application layer rather than the network perimeter. The report highlights how attackers exploit the browser's privileged position in user workflows. Extensions with legitimate-appearing permissions grant attackers access to passwords, session tokens, and sensitive data. Phishing attacks delivered through browser windows bypass traditional email security measures. Credential theft remains the leading attack method, with browsers serving as the harvesting ground. Shadow AI—unauthorized AI tools running in browser contexts—presents an emerging threat for data exfiltration and system manipulation. The findings underscore that endpoint security must now extend beyond traditional antivirus to include browser-layer defenses. Organizations should prioritize extension governance, user authentication practices, and browser isolation technologies to counter these evolving threats.