Alexandre Esser

Alexandre Esser

About Alexandre Esser

Co-founder & CTO 👨‍💻
Social-engineering expert and engineer with 15+ years building technology and leading engineering teams. As CTO, he leads the development of Arsen's platform, the most advanced attack simulations, from vishing to deepfakes, alongside an interactive security-awareness training platform. He writes about how modern social engineering really works, and how to stop it.

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Alexandre Esser Latest Posts

Deepfake executive fraud simulation: test your team against a fake executive on a live video call

Deepfake executive fraud simulation: test your team against a fake executive on a live video call

Attackers can now stage ultra-realistic video calls using deepfakes of executives or colleagues to trick employees into granting access to internal systems and sensitive data. Arsen Deepfake Video...

BEC Simulation: run phishing simulations from your own organization domain

BEC Simulation: run phishing simulations from your own organization domain

You can now build a custom phishing scenario that sends from your organization domain instead of a lookalike spoofing domain. The result is a simulation that reproduces the exact condition that...

We're Building the Future of Human Risk Management, and We're Hiring

We're Building the Future of Human Risk Management, and We're Hiring

Most breaches start with a human mistake. Arsen is building the tools to fix that and hiring the team to accelerate. Here's our product vision and what we're looking for.

Introducing the New Arsen Cyber Awareness Training Platform

Introducing the New Arsen Cyber Awareness Training Platform

For the past few weeks, we’ve been gradually deploying a redesigned security awareness training module, progressively available to all customers. We have designed our new training module...

Google Safe Browsing: How to Recover from a Domain Flagging

Google Safe Browsing: How to Recover from a Domain Flagging

Phishing simulation domains can get flagged by Google Safe Browsing even when used for legitimate security testing. Here's how to recover flagged domains fast and keep your awareness campaigns...

Google Safe Browsing: How to Stay Invisible to Google's Bots

Google Safe Browsing: How to Stay Invisible to Google's Bots

Google Safe Browsing protects billions of devices — but it can disrupt authorized phishing simulations. Discover multi-layered anti-crawling strategies including IP filtering, CAPTCHA, time-based...

Google Safe Browsing: How Does It Work?

Google Safe Browsing: How Does It Work?

Google Safe Browsing protects billions of users from malicious websites and phishing threats. But for organizations running internal phishing simulations, it creates real technical hurdles....

New: simulate ClickFix attacks on your workforce to identify who needs training before it's too late.

New: simulate ClickFix attacks on your workforce to identify who needs training before it's too late.

ClickFix attacks trick employees into running malware themselves, without any exploit needed. Learn how this fast-growing threat works, who it targets, and how Arsen's new ClickFix simulations...

New in Arsen: Turn a Simple Prompt into a Comprehensive Defense Strategy

New in Arsen: Turn a Simple Prompt into a Comprehensive Defense Strategy

Our latest release note: Building effective cybersecurity training takes time. Arsen’s new AI-assisted builder combines hyper-realistic simulations with customizable learning paths that blue teams...

The slow but steady evolution of phishing attacks

The slow but steady evolution of phishing attacks

Discover the evolution of phishing attacks over time, from the first phishing attack to the most advanced attacks occurring today.