Linux admins,

DEF CON is one of the world’s largest and most influential hacker conferences, held annually in Las Vegas, where cybersecurity professionals, researchers, and enthusiasts gather to share knowledge, showcase exploits, and explore the latest in digital security. DEFCON 2025 highlighted that AI is both a potential savior and a new attack surface in cybersecurity. For Linux security administrators, staying ahead of the threat actors requires leveraging AI-driven tools to automate detection and remediation.

Learn more about how you can use AI tools to better protect critical systems and prepare for evolving threats in the AI-driven security landscape.

 

Yours in Open Source,

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Dave Wreski

LinuxSecurity Founder

National Security & AI at DEFCON 2025: Where Code Meets Crisis

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DEFCON isn’t your average tech conference. It’s not about launching flashy products or corporate handshakes—it’s about putting reality under a microscope and asking big, uncomfortable questions. This year, the 2025 DEFCON hacking conference had a sharp focus: securing the digital backbone of the nation. And let’s be honest, seeing how razor-thin those defenses sometimes are when stacked against evolving threats can make even the most seasoned sysadmin bite their nails.

From critical infrastructure to AI-powered supply chains, the discussions and competitions this year felt urgent, but not in that doom-and-gloom, doomsday-prepper vibe. It was more like: “Hey, things are bad, but here’s a list of practical moves to make them better before chaos settles in.” And, surprisingly, much of that resilience is coming from the collision between artificial intelligence and well-established security practices. 

Learn About National Security at DEFCON 2025>>

Hashcat 7.0.0: Redefining Password Recovery & Security on Linux

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Every now and then, a tool you already rely on gets an upgrade that makes you stop what you’re doing and reevaluate how you’ve been using it. That’s exactly the vibe Hashcat 7.0.0 is bringing to the table. If you’re a Linux admin—or anyone remotely serious about infosec—you already know Hashcat’s reputation as the Swiss Army knife of password recovery. It’s fast, it’s versatile, and frankly, it’s intimidating in its scope. But with this 7.0.0 release, we’re not just getting your standard performance tweaks or a few shiny new features. What we’re seeing here is a recalibration of what’s possible for admins juggling the dual responsibilities of securing systems and recovering credentials.

Whether you’re testing passwords in /etc/shadow for weak spots, responding to incidents, or just nerding out on how newer security standards hold up under pressure, this version of Hashcat throws some big changes your way. Let’s get into what actually matters in this release. 

Learn About Hashcat 7.0.0>>