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Crypto Hypno: Cryptography basics (Part 3 of 5)

Crypto Hypno

In the first article you learned about encryption basics.  In the second part, I showed you the difference between symmetric and asymmetric encryption.  And now you’ve graduated to the hypnotizing world of hashing. We’re going to talk about data integrity and

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Crypto Hypno: Cryptography basics (Part 1 of 5)

Crypto Hypno

Today we’re going to look into how we can make it safer to send traffic on networks.  By embracing encryption we can protect the data that devices use to communicate with each other.  So let me start by saying cryptography is an

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: , , , ,

How to disable the HD iSight webcam on your Mac

Image credit Christopher Aloi via Flickr

Have you ever wondered if someone might be illicitly staring back at you through your webcam; watching your every move; all without your knowledge?  Cynics have known this for ages, but people who generally trust humanity might be surprised.  Yes, there

Posted in Apple, Laptops, Mac OS X 10.10 Yosemite, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks Tagged with: , , , ,

What is SuperFish?

Image credit Malcolm Browne via Flickr

Quick, go to https://filippo.io/Badfish/ to see if your Lenovo computer is vulnerable to the Superfish security hole. What the heck is Vonnie talking about here? Here’s the story: between the months of September and December 2014, Lenovo (the biggest maker of consumer

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Why is my name in the upper right corner of Google Chrome?

Why is your name in the upper right corner of the Google Chrome title bar?

So, the other day I popped open Google Chrome and noticed my name sitting in the upper right corner of the title Bar.  I mused to myself: Huh? That’s weird.  How did that get there? So here’s the deal: this is

Posted in Google Chrome, Web Browsers, Windows 10, Windows 7, Windows 8, Windows 8.1, Windows Vista Tagged with: , , ,