Zscaler ThreatLabz 2023 State of Encrypted Attacks Report

The Zscaler ThreatLabz research team regularly examines encrypted threat data from the Zscaler Zero Trust Exchange™ platform, the world’s largest inline security cloud, to help organizations better understand and prevent these elusive threats. The Zscaler Zero Trust Exchange processes over 360 billion transactions and 500 trillion signals each day.

Between October 2022 and September 2023, the Zscaler cloud blocked 29.8 billion attacks embedded in encrypted traffic (SSL/TLS). That’s a 24.3% increase from 2022, which itself was 20% more than the previous year. This trend underscores the sophisticated nature of cybercriminal tactics leveraging encrypted channels to evade detection