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Working notes on account takeover, help desk social engineering, deepfake fraud and identity verification, written for the security and IT teams who handle account recovery.

64 pieces Latest August 21, 2026

Showing 10 of 64

Blog
How to reset MFA safely: Entra ID, Microsoft 365, Okta, and Duo

Resetting MFA is a minute's work, and every vendor documents it. Deciding whether the person asking should get one is the part nobody documents.

August 21, 2026
Blog
What is account takeover?

The account is occupied rather than broken. It keeps working normally, which is what makes a takeover hard to see.

August 21, 2026
Blog
What is vishing? How voice phishing became the front door to the enterprise

The technique is decades old. What changed is that a voice on the phone stopped being evidence of who is speaking.

August 21, 2026
Blog
Corporate account takeover: why business accounts fall differently

Corporate account takeover borrows an employee's authority and spends the company's money with it.

Ori Eisen August 19, 2026
Blog
Why help desk account takeover protection stalls in deployment

Most teams try detection first, and it is useful to understand why that goes the way it does.

Ori Eisen August 25, 2026
Blog
Verifying users without making them install an app

Identity verification rollouts tend to hit the same wall, and it is rarely a technical one.

Ori Eisen August 21, 2026
Blog
Account takeover protection for financial services: call centers, wire approvals, and the calls in between

Someone calls a bank's support line pretending to be a customer, or calls a customer pretending to be the bank, and the conversation itself…

Ori Eisen August 20, 2026
Blog
How to evaluate account takeover protection for IT help desks

Most account takeover does not start with a broken password. It starts with a phone call that sounds completely reasonable.

Ori Eisen August 19, 2026
News
Trusona Launches The Identity Perimeter Substack

And the first post is from Ori Eisen

Ori Eisen July 30, 2026
Blog
Deepfake fraud statistics for 2026: the numbers security teams are citing

Deepfake fraud is no longer a fringe threat. In 2026 it is a routine attack vector that shows up in contact centers, hiring pipelines,…

Ori Eisen July 13, 2026

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