Marc Dahan
Specialist in Online Privacy
Marc is a technology journalist with over 15 years experience. He specializes in content related to emerging technologies, cybersecurity, big data, privacy, artificial intelligence, and the politics of technology.
He has worked for some of the largest tech companies (Deluxe Digital, Sony, Autodesk) and is passionate about online privacy and digital freedom.
Articles by Marc
Masquerade attacks can be difficult to detect because the attackers use valid credentials. This post takes looks at how masquerade attacks work and provides tips on how to defend against them.
By Marc Dahan
in Information Security
on December 21, 2023
Software vulnerabilities are quite common but if even one of them turns out to be a zero-day, the damage could be massive. We look at what zero-day exploits are and what you can do about them.
By Marc Dahan
in Information Security
on June 27, 2023
In this post we take a deep dive into Apple's proposed client-side CSAM scanning to find out what all the fuss is about.
By Marc Dahan
in Information Security
on December 15, 2021
Why would you want to keep your VPN enabled all the time? There are actually some compelling reasons to do this. We look at the pros and cons of an always-on VPN.
By Marc Dahan
in VPN & Privacy
on February 7, 2025
Watering hole attacks can be devastating to organizations - and they're quite common. In this post we explain what watering hole attacks are and how you can avoid them.
By Marc Dahan
in Information Security
on January 25, 2024
SSTP is a proprietary VPN protocol, developed by Microsoft. In this post, we explain how SSTP works and show you how to create a connection in Windows and Linux.
By Marc Dahan
in VPN & Privacy
on September 19, 2023
Web cache poisoning attacks can put your web site/application at risk, as well as your users. In this post, we look at how web cache poisoning attacks work and what you can do to prevent them.
By Marc Dahan
in Information Security
on December 21, 2023
Cryptanalysis is a collection of techniques used to break encryption without obtaining the decryption key. What are these techniques? How do they work? And what can be done to protect against them?
By Marc Dahan
in Information Security
on November 17, 2023
QR codes are kind of cool. But they're also vulnerable to a pretty nasty online attack, called QRLjacking. In this post we look at what QRLjacking is and how you can avoid it.
By Marc Dahan
in Information Security
on December 27, 2023