TAP | Tech A Peep

What you should know about the Digital Certificate

January 26th, 2010

The digital certificate and an electronic file containing data of a person or institution, used to verify your identity. This file may be stored in a computer or other media, as a token or smart card.

Examples similar to a digital certificate are the CNPJ, RG, CPF and driver’s license of a person. Each contains a set of information that identifies the institution or person and authority (for these examples, public organizations) that guarantees its validity.

Some of the key information found in a digital certificate are:

• data that identifies the owner (name, identification number, status, etc.);
• name of the Certification Authority (CA) that issued the certificate;
• the serial number and the period of validity;
• the digital signature of the CA.

The goal of the digital signature on the certificate is to indicate that another person (Certification Authority) ensures the accuracy of the information contained therein.

What and Certification Authority (CA)?

Certification Authority (CA) and the entity responsible for issuing digital certificates. These certificates can be issued for various types of entities, such as person, computer department of an institution, institution, etc..
Digital certificates are a form of electronic signature of the CA that issued it. Thanks to his reputation, the AC and generally recognized by all as confident, playing the role of “Electronic Notary”.

What examples can be cited on the use of certificates?

Some typical examples of the use of digital certificates are:

• When you access a site with secure connection, such as access to your bank account via the Internet, and can check the site and really made the institution that claims to be, by verifying its digital certificate;

• when you query your database over the Internet, this has to make sure your identity before providing account information;

• When you send an important e-mail, your application e-mail you can use your certificate to “digitally” sign the message in order to assure the recipient that the email and your and that has not been tampered with between the sending and receipt.

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Article Source:http://www.articlesbase.com/security-articles/what-you-should-know-about-the-digital-certificate-1785635.html

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Readers Mail Software Security Alerts

January 26th, 2010

What are the risks associated with use of a program reader e-mails?

Most security problems involving e-mails are related to the contents of the messages, which usually abuse of social engineering techniques or characteristics of certain programs readers e-mail, so you can open files or run programs attached to messages automatically.

It is possible to configure a program reader e-mails more safely?

Yes Some setup tips to improve the security of your program reader e-mails are:

1. turn off the options to automatically open or run files or programs attached to the messages;

2. off the options to run JavaScript and Java programs;

3. off, if possible, how to view emails in HTML format.
These settings can prevent your program reader e-mails automatically spread viruses and Trojan horses, among others. Programs are readers of e-mails that do not implement these functions and therefore do not have these options.

It is important to emphasize that if the User follow the recommendations, but still
open the files or manually run the programs that come attached to emails, you may have a problem that would breach the security of your computer.

What preventive measures should adopt the use of programs readers e-mails?

Some preventive measures that minimize the problems brought to the e-mails are:

• always keep the latest version of your program reader e-mails;

• Do not click on links that, perchance, may appear in the content of the e-mail. If you really want to access the page with the link, type the address directly in your browser;

• Avoid open files or run programs attached to e-mails without first check them with a virus;

• always suspicious files attached to messages, even if they were sent by persons or entities known. The return address may have been forged and the attachment can be, for example, a virus or a trojan horse;

• download programs directly from the manufacturer’s website;

• Avoid using your program reader e-mails as a browser, switching the
viewing emails in HTML format.

Currently, Internet users have been bombarded with junk mail and, especially, with fraudulent messages and the purpose of obtaining financial advantage. Some examples are:

• messages offering large sums of money through an electronic transfer of funds;

• messages with offers of products with prices well below the prices charged by the market;

• messages that seek to induce the User to access a specific page on the Internet or install a program, open a photo album, see e-cards, etc., but whose real purpose and cause the user to provide personal and sensitive data, such as accounts banking, passwords and credit card numbers credit.

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Article Source:http://www.articlesbase.com/security-articles/readers-mail-software-security-alerts-1785704.html

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How To Speed Up My Computer- How I Have Speed Up My Computer for Free and You Can Speed Up Your Computer Too

January 26th, 2010

In this article you will learn the exact three steps I did to speed up my computer for free and save yourself some money and frustration. You will also discover the importance and how to remove unneeded programmes, files and defrayment the hard disk.

Remove Unused Programmes- We all tend to install number of programmes that can potentially be used in future. The programmes take large amount of space on the hard disk and eventually slow down computer processing. Very easy and effective way to deal with this problem is to go to Start-Settings-Control Panel- Add Remove Programs. This will open a window with a list of all current programs on you computer and frequency of use. Go through the list and start removing unused programs. This has significantly speed up my computer.

Remove Unneeded Files- If you are as big music and video fanatic as I am you will need this tip on how I have speed up my computer. OK, what is the problem with being music and video fanatic and how I managed to speed up my computer? I download lots of music and movies to my documents in neat filing system. Without even realising I had used almost 90% of the massive hard drive capacity. It slowed down my computer to an unbearable level. I friend of mine suggested that I get myself an external storage device (memory stick, rewrittable DVD or external hard disc) and move all my current filing system as well as download everything to the external storage device. You guess, I have speed up my computer and was able to use it again.

Defragment Your Computer- Difragmenting is very important because the computer saves parts of files in different locations and when opening or editing the file the more it is fragmented the longer it takes to process it and the computer becomes very slow. Follow these steps to defragment your computer: Start-Accessories-System Tools- Disk Defragmenter-Analyze. This will analyze the hard disk and inform you if it needs defragmenting. If it does click on Difragment. Depending on your disk size this action may take log time. It speed up my computer, it will yours too.

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Article Source:http://www.articlesbase.com/security-articles/how-to-speed-up-my-computer-how-i-have-speed-up-my-computer-for-free-and-you-can-speed-up-your-computer-too-1781234.html

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