Zscaler ThreatLabz report says phishing volume falls 20% as AI boosts lure sophistication

Zscaler, Inc.

Zscaler, Inc.

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  • Zscaler ThreatLabz reported phishing volume fell 20% year over year in 2025, extending a second straight annual decline.
  • Attackers shifted to higher-precision campaigns using AI-generated “text-to-site” tools; 413,524 AI-made phishing sites were identified, nearly 10% malicious.
  • Encrypted delivery dominated; 95.2% of phishing attempts were hidden in encrypted traffic, raising pressure for deep TLS inspection.
  • Services sector targeting rose 65.5% as criminals exploited billing, onboarding, and renewals; Microsoft and Google were the most imitated brands.
  • Deception telemetry logged 89.9 million hostile interactions from 1.37 million attacker IPs in six months, signaling heavier pre-attack scanning and credential probing.


Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Zscaler Inc. published the original content used to generate this news brief via GlobeNewswire (Ref. ID: 202606100805PRIMZONEFULLFEED9733909) on June 10, 2026, and is solely responsible for the information contained therein.

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