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Security Archives - Page 3 of 20 - fixedByVonnie
Blog Archives

Destroying a Cisco Switch with CDP Flooding

This is an easy Denial of Service (DoS) attack to launch.  We’re going to use the Cisco Discovery Protocol (CDP) to bring a switch to its knees.  It literally only took me 5 minutes to completely destroy this enterprise class

Posted in Hardware, What Is Tagged with: ,

Using the Social Engineering Toolkit In Kali Linux

Here’s a little known fact:  It’s a lot easier to trick a credulous user into dishing over his password than it is to crack it.  People are getting smarter with passwords.  It seems like hacked accounts are always in the

Posted in Linux Tagged with: , , ,

Cracking Windows Passwords (Part 1 of 2)

Do you remember a thing called trust?  I remember when I was 10 or 11 years old I decided to open a “family” bank for my brother and sister. Being the conniving bigger brother, I convinced them that their allowances

Posted in Windows, Windows 10, Windows 7, Windows 8, Windows 8.1, Windows Vista, Windows XP Tagged with: , , , ,

Crypto 201: Public Key Infrastructure (PKI) – Cryptography for smarties (Part 3 of 3)

PKI with Vonnie, background image credit J. Triepke via Flickr

So let’s trace what happens when the certificate arrives at your computer.  I n the last post we talked about why it’s mathematically infeasible for someone to forge a root certificate signature.  I also showed you how to view the

Posted in Linux, Mac OS X 10.10 Yosemite, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks, Windows, Windows 10, Windows 7, Windows 8, Windows 8.1, Windows Vista, Windows XP Tagged with: , , , ,

Crypto 201: Public Key Infrastructure (PKI) – Cryptography for smarties (Part 2 of 3)

PKI with Vonnie, background image credit J. Triepke via Flickr

Ahh, the Public Key Infrastructure.  It’s sounds monolithic doesn’t it? That’s because it is.  Don’t try to understand it by yourself. You need an expert.  You need Vonnie.  You need to read on playa.

Posted in Mac OS X 10.10 Yosemite, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks, Windows, Windows 10, Windows 7, Windows 8, Windows 8.1, Windows Vista, Windows XP Tagged with: , , , ,