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Passwords

Password Hash Cracking with the NVIDIA RTX 4090

In February 2017, I co-authored a blog detailing our build of an 8-GPU password cracker. Over the past 8 years, it’s had millions of views and thousands of comments. To all the concerned writers, nothing has melted down and we continue to run 2 nearly identical 8-GPU crackers today. Both are currently running 8 NVIDIA […]

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Stop Sharing Your Password with Everyone

Palo Alto Networks firewalls have the ability to create security policies and generate logs based on users and groups, and not just IP addresses. This functionality is called User-ID. User-ID™ enables you to map IP addresses to users on your network using a variety of techniques.

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Lessons Learned from Pentesting - What Should Keep You Up At Night

With over 15 years in information security, I feel like I've seen it all. And while I can't claim to be a great penetration tester myself, I can say that I work with some truly talented pentesters. I can also feel confident stating that I've read more pentest reports than most. So, having this background… I get asked by businesses and defenders all the time, "What advice would you give?" and, "What lessons can be learned?"

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Why 14 Characters?

This blog/article/rant will cover a brief background of password cracking as well as the justification for SynerComm’s 14-character password recommendation.

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How to build a (2nd) 8 GPU password cracker

In February 2017, we took our first shot at upgrading our old open-frame 6 GPU cracker (NVIDIA 970).  It served us well, but we needed to crack 8 and 9-character NTLM hashes within hours and not days. The 970s were not cutting it and cooling was always a challenge. Our original 8 GPU rig was designed to put our cooling issues to rest.

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How to build a 8 GPU password cracker

This build doesn't require any "black magic" or hours of frustration like desktop components do. If you follow this blog and its parts list, you'll have a working rig in 3 hours. These instructions should remove any anxiety of spending 5 figures and not knowing if you'll bang your head for days.

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