Sep 14, 2026 · 8 min
Help-desk impersonation puts Microsoft cloud accounts at risk
Passkey phishing attack, Anthropic's blockbuster report, airline cybersecurity loophole
The campaign shows how attackers can bypass strong account protections by manipulating users rather than breaking authentication technology.
- 1Attackers impersonated IT help-desk staff to persuade users to change passkeys or multifactor authentication settings.
- 2Microsoft observed the campaign targeting cloud accounts through identity-focused social engineering delivered by phone or message.
- 3The briefing also points listeners to CISOseries.com for fuller cybersecurity reporting beyond the daily headlines.
Don't miss
The briefing explains how impersonated help-desk staff persuade users to alter passkeys or multifactor authentication settings, enabling account takeover.
The brief
Microsoft observed a phishing campaign that targets cloud accounts through identity-focused social engineering, not merely conventional credential theft.
Attackers impersonate IT help-desk personnel by phone or message, then persuade users to change passkeys or multifactor authentication settings.
The core security lesson is uncomfortable: authentication protections can be undermined when attackers manipulate the people authorized to manage them.
Steve Prentice hosts the weekday briefing, which directs listeners to CISOseries.com for the full cybersecurity stories behind its headlines.