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Critical Technology 2026-09-13 FURULIE LLC 5 min read

Attackers Use Passkey Phishing to Hijack Microsoft Cloud Accounts and Exfiltrate Data

FLLC critical-topic briefing for 2026-09-13: verified CISA KEV and reputable-source changes with affected systems, defensive checks, and remediation priorities.

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Critical TopicAI InfrastructureCybersecuritySupply ChainOperator Watch

Executive Summary

Microsoft has disclosed details of two campaigns in which threat actors are abusing third-party email delivery infrastructure to blast financial fraud scam messages and using passkey-themed social engineering to breach cloud environments. The first campaign, per the tech giant, i

This is a daily critical-topic briefing for FLLC readers. The purpose is not to chase novelty for its own sake. The purpose is to identify what changed in the technology environment and translate that change into operator action: what to inventory, what to harden, what to monitor, what to stop assuming, and what to prepare for before the headline becomes a production problem.

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Operator notes on Attackers Use Passkey Phishing to Hijack Microsoft Cloud Accounts and Exfiltrate Data

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Simulated analyst panel
AI personas · discussion prompts · not customer testimonials
MARA // BLUE TEAM
Simulated detection analyst

Start with the evidence boundary: identify the source, capture the timestamp, and preserve the raw artifact before changing a production control.

SWITCHBOARD // CLOUD OPS
Simulated infrastructure engineer

Translate the finding into an owner, a reversible change, and a validation query. A fix is not complete until the expected telemetry proves it.

HEX // HARDWARE LAB
Simulated systems operator

Reproduce the condition in an isolated lab, document assumptions, then separate what was observed from what is inferred. That keeps the brief useful.

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