Approximately 98% of all email is spam. To most people that’s a frighteningly huge number, but also makes sense to most of us given all the garbage that flows into our inboxes.

When I talk with clients about spam, their number one request is “Make it go away.” People just don’t want to ever see it, let alone have to deal with it. Sure it’s a nuisance, but what effect can it really have on the bottom line?

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If you are a freebie hunter, you already know that not all freebies are really free. Some of them are just a big waste of your time and some can be really dangerous for you. I will try to point few things you should be aware of.

Viruses Free software infected with viruses and trojans. You will need a good antivirus and make sure you have always the latest updates. Only download files from respected sources and you should be just fine. You can get some free stuff on our website. We try to test all freebies first.

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Network attacks take many forms, and it’s important to know how the potential security issues with ARP, DHCP, and MAC addresses. They’re innocent looking enough, but each of these common network protocols and addresses can be turned against us. Today, we’ll talk about what MAC Address Flooding is, how it can be used against our network, and the best defense against this attack.

A MAC Address Flooding attack is an attempt by a network intruder to overwhelm the switch memory reserved for maintenance of the MAC address table. The intruder generates a large number of frames with different source MAC addresses - all of them invalid. As the switch’s MAC address table capabilities are exhausted, valid entries cannot be made - and this results in those valid frames being broadcast instead of unicast.

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Many people fear that windows vista is not the right operating system for them. It is a well know fact that when installing this operating system you might encounter some software incompatibilities, but to over come these issues and know first hand what to expect you must try it.

I have created a list of the most common software problems below for you to follow:

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Today we are going to talk about proxies.

You care about your security? You want to speed up your downloads? Your company has a proxy and you cant connect to some websites? or maybe you just want to learn.

If you feel identified by some of those questions then you must read this guide.

¿What is a proxy server?

A proxy server is a kind of buffer between your computer and the Internet resources you are accessing. The data you request come to the proxy first, and only then it transmits the data to you.

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During the Black Hat 2007 Conference, a quick display of hacker technology demonstrated just how secure -or not- Wi-Fi hotspots are. In the middle of a conference presentation, session identifiers and cookies were captured from the internet browser of a random user accessing an unsecured wireless signal. The result? The helpless audience member could only look on as his Gmail inbox was suddenly presented for all to see.

Though this was eye-opening for many, it shouldn’t be. Wireless networks have been unsecure for years; in 2006 the University of Cambridge surveyed 2,500 access points of Wi-Fi networks around the University and found 46% were unencrypted (1). An overall estimate puts that number even higher - around 95% (2).

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Getting Windows to show the hidden files on the PC is pretty straight forward; here are the sequences of Windows clicks and options you need to follow to get up the hidden files:

1. In Windows Explorer, (for this select “Start”=>”All Programs”=>”Windows Explorer”)
2. Select “Tools” and go to “Folder Options”
3. Click on the “View” tab
4. On the “Hidden files and folders” tab, click on “Show hidden files and folders”

It’s as simple as that!

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Off-Line Identity Theft: For the past five years I have taught over 1150 people how to protect yourself on and off line. There is a new scam where the thief already has information about you. They are trying to get some additional information to complete a sales transaction.

In some of the e-mails and web sites this scam is being referred to as Visa and MasterCard Credit Card Scam. This scam is being done using the phone.

The script below is of a typical call for this scam:

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People still don’t like to believe that the tech’s at the helpdesk can see
everything on their computer without actually being at the computer. If
anybody has administrator rights, and most members of the company
helpdesk do, as do many managers, they can see every file on the
computer. Chances are, there is at least one person in your company
that is fully willing to snoop around just for fun.

Administrators
can access admin shares on your computer as long as the Server
service is running. They can easily access the path on anybody’s computer using
Start > Run and typing:

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Personal computers these days seem to be infected in large number by spyware or spybots. These threats have increased greatly since world wide economical development, making the internet an enormous database suitable for finding anything about anyone at any time. Along with this virtual expansion, threats started to appear in larger numbers than before.

Spyware and spybots invaded our browsers and our computers for the sole purpose of getting access to personal information. These types of attacks have been considered illegal according new lows but that doesn’t mean that the danger has diminished.

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