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Interactive Brokers Phishing Scam: Fake IRS W-8BEN Renewal Alert

ID: 449125bf-ae0e-541b-a4dc-a6f1f91e757a

STIX ID: report--449125bf-ae0e-541b-a4dc-a6f1f91e757a

Feed Name: Cofense Blog

Threat Score
55/100

Date Published: 2026-04-13

Date Updated: 2026-04-27

Author: Cofense

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**Executive summary:** Cofense Phishing Defense Center identified a phishing campaign impersonating Interactive Brokers that requests renewal of Form W-8BEN and directs victims to a fake login page (hXXps://wbnoebe.com?token=...), which harvests credentials and is associated with the IPs 104.21.64.219 and 172.67.187.230; users are advised to validate senders/URLs and enable MFA to reduce risk.

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