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Rachel Rabin

Rachel Rabin

Threat researcher on Proofpoint's Cloud Threat Research Team, known for research on cloud brute force and OAuth client ID spoofing attacks against Microsoft Entra ID.

Sep 3, 2026

DISCARDED: Tales From the Threat Research Trenches

DISCARDED: Tales From the Threat Research Trenches

Intercepted: How Hackers Take On the Cloud

Sep 3 · 54m

Selena Larson
Selena LarsonHOST
10:00
With that, Rachel, kick it over to you.
Rachel Rabin
Rachel RabinGUEST
10:03
Thank you so much.
Rachel Rabin
Rachel RabinGUEST
10:04
So today I'm going to be talking about spoofing techniques in cloud brute force campaigns.
Rachel Rabin
Rachel RabinGUEST
10:10
I wanted to start with this quote that's done the round for a few years.
Rachel Rabin
Rachel RabinGUEST
10:14
Attackers don't break in, they log in.
Rachel Rabin
Rachel RabinGUEST
10:16
And for me, this really captures the move towards identity as the attack surface.
Rachel Rabin
Rachel RabinGUEST
10:21
So.

37 MINS LATER

Selena Larson
Selena LarsonHOST
47:12
Were these the same threat actor or are they just different actor clusters using similar techniques?

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