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re: plans for party -- How a Compromised Argentine School Account Targeted K-12 in the U.S.

ID: 11ad2e3b-5b7a-59f2-86b5-65e7b40c20df

STIX ID: report--11ad2e3b-5b7a-59f2-86b5-65e7b40c20df

Feed Name: IRONSCALES

Threat Score
70/100

Date Published: 2026-06-21

Date Updated: 2026-06-21

Author: [email protected] (Audian Paxson)

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A compromised Microsoft 365 account at an Argentine educational institution was used in a targeted spear-phishing attack against a U.S. K-12 district. The email impersonated a known contact by display name, passed SPF/DKIM/DMARC, and included a same-day registered domain (ethrecn.com) hosting a randomized credential-harvesting URL; IRONSCALES community intelligence flagged and quarantined the message.

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