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Hackers using SMiShing with Punycode

ID: a1ca221d-2981-55dd-9875-60f86f00713f

STIX ID: report--a1ca221d-2981-55dd-9875-60f86f00713f

Feed Name: Zscaler Security Research Blog

Threat Score
55/100

Date Published: 2025-09-19

Date Updated: 2026-05-01

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This Zscaler ThreatLabZ report describes a rise in SMiShing campaigns that use Punycode homograph (IDN) attacks to impersonate legitimate domains on mobile devices, illustrates a WhatsApp-based phishing example mimicking jetairways.com, documents browser differences in displaying IDN vs Punycode, notes recent domain registration activity, and highlights redirects to another domain that may serve malware; it advises caution, use of password managers, and vigilance when clicking links in SMS/IM.

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