Mark Sanborn Mark Sanborn Fishing Mark Sanborn

Coder, Entrepreneur, Blogger, and Coffee Addict

Category Archives: Security

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I Received my PayPal SecureKey Today

Posted on by Mark Sanborn

Well, today I received my Paypal SecurityKey. I have been really excited to try this device and I have been anxiously waiting for its arrival. Today I finally received it and overall I really like it and I am glad … Continue reading

Posted in Security | Tagged , , , , | 5 Comments

Paypal Security Key for Multi-Factor Authentication

Posted on by Mark Sanborn

After listening to an episode of the Security Now Podcast I was fascinated by the idea of multi-factor authentication. In the perfect paper password episode they discussed using one time passwords that were written on a credit card sized piece … Continue reading

Posted in Security, Uncategorized | Tagged , , , | 2 Comments

Encrypt a File on Linux or FreeBSD with GnuPG

If you ever wanted to quickly encrypt a file in Linux or FreeBSD without complicated keyrings and key files this is the post for you. In this guide we will use gnupg to quickly encrypt any file in Linux or … Continue reading

Posted in FreeBSD, Linux, Security | Tagged , , , | Comments Off

SQL Injection Attack and Updating WordPress

Well, today one of the blogs that I maintain for someone was compromised by an SQL injection. The hacker had apparently injected an invisible iframe that contained that loaded a website that contained a trojan. They had also placed invisible … Continue reading

Posted in Security, Software | Tagged , | Comments Off

Securely Wipe a File with DD

Sometimes we have sensitive data that we want to get rid of. Since deleting a file doesn’t actually prevent it from being recovered we need to do some extra steps to ensure that it can’t be recovered. In this post … Continue reading

Posted in FreeBSD, Linux, Security | 3 Comments

Finding a Computer’s MAC Address on the Network

Sometimes we need to know the MAC address of a specific computer for multiple reasons. For example, I needed to know the MAC address of one of my computers so I could tell the router to assign a specific IP … Continue reading

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Crack Windows XP and Vista Passwords in Seconds

Back in the day there used to be a program called lophcrack that was fairly good at cracking Windows passwords. Fortunately it wasn’t very effective for cracking strong passwords. Today I ran a newer cracking program on my computer called, … Continue reading

Posted in Security | 3 Comments

Wiping a Hard Drive with DD

A common assumption is that deleting or formatting a hard drive will be enough but in fact the data is still recoverable. In fact is fairly trivial and the process is quite easy to restore them. For this reason security … Continue reading

Posted in Howto, Security | 4 Comments
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