Avoid Internet Risks

While accessing the Internet, follow the guidelines of usage of Web Browser.

We shall briefly discuss the various security settings that Microsoft Internet Explorer (IE) offers. Owing to little difference in the versions of IE, we shall discuss the versions up to and including IE6.0 and IE7.0 separately.

In IE6.0, click on Tools |Pop-up Blocker. Turn on the pop-up blocker. The previously grayed ‘Pop-up Blocker Settings’ will be activated. If the pop-up blocker was already active then all you need is to look into the settings. It is advised to keep this list empty (i. e. block all pop-ups) and as you browse the web you will get notifications of any blocked web pages and you may then choose to let a few legitimate pop-ups through. This allows you control over the unwanted, annoying and possibly malicious pop-ups from opening. The 'Filter Level' in the pop-up blocker setting lets you control the extent of pop-up blocker intervention. For more information on pop-ups click on the 'Pop-up Blocker FAQ' at the lower left corner of the 'Pop-up Blocker Settings' window.

Click on Tools |Internet Options to open the options window of IE. Click on the Security tab to open the security settings related to web pages. On this page you will have the choice of rating websites based on the suitability of the website contents. The 'Intranet Sites' are not of much use in the home environment. 'Trusted Sites' are the sites that you prefer to have relaxed access criteria. The 'Restricted Sites' are those whose content are inappropriate to be viewed and are consequently blocked if attempts to access these are initiated. 'Internet' encompassed the websites that are not put into any of these categories. Adding of websites to 'Trusted' and 'Restricted' areas is just a matter of clicking the 'Sites' control and keying in the address of the website.

A note of caution though is to be remembered. A 'HIGH' security level provides high security at the cost of functionality. Similarly, a 'LOW' security level offers high functionality at the cost of security. Consequently, both these settings should be used with sound judgment

A website sets cookies (files that store user related information in your computer) to provide for added functionality in terms of access to the website content.  However, since these cookies store information such as credit card details from an on line e-commerce site or user names and passwords, they need to be given a thought on whether or not a cookie should be allowed to be set by a website. The 'Privacy' tab in the IE options window ( Tools |Internet Options) offer for 6 levels of settings with increasing privacy protection. The 'Low' level is least intrusive but also least secure. Contrastingly, the 'Block All Cookies' setting block any cookie from being set and prevents websites from reading the existing cookies as well.
It is advised to delete all cookies those have been set by a website at the end of every browsing session. One can achieve this objective by clicking the 'Delete Cookies' command button on the 'General' tab of the options window.

The content advisor allows users view a website depending upon the content of the website. The content filtering is done on the following four criteria: Language, Nudity, Sex and Violence. These are particularly useful for restricting access to certain websites when a child is accessing the Internet. Click on the 'Content' tab of the IE potions window and then click on the 'Enable' button in the 'Content Advisor' section. In the window that opens, move the slider bars to adjust the extent of permissible content. The 'Approved Sites' tab lists those websites that are allowed irrespective of the settings in the 'Ratings' tab.

It is advisable to clear the cached cookies, pages visited and the temporary information created during a browser session.. This results in clearing of information that would otherwise be left back in your system and might be used by a malicious user should he find an entry into your system. We can do this by opening the IE options window and click on the following entries:

This is the second most popular web browser that people use to access the Internet and consequently needs coverage as well. The following instructions are for Mozilla Firefox running on a Microsoft Windows machine. The most popular version 1.5 and 2.0 all offers

As with IE, Mozilla Firefox, henceforth Firefox, also provides a Pop-up blocker. This can be accessed by clicking 'Tools |Options' menu and then clicking the 'Content' tab. Check the 'Block pop-up windows' check box and then click on the 'Exceptions' button to add a few websites from whom pop-ups may be allowed.

Java Scripts are used to provide the active content of a website. Since they are based on the principle of triggering a piece of program depending on the user input, they execute the moment a user clicks or inputs some data anywhere in the page. This is one of the methods used by malicious code programmers to get into a system and thus poses a threat. Firefox allows for the control of the Java Script execution. Click on the 'Tools |Options' menu item and then click on the 'Content' tab and check the 'Enable Java Script' check box. The default setup provided by Firefox should offer sufficient functionality and need not be worried about to tinker with.

The access to the settings of the history of pages visited is held in the 'Privacy' tab of the Firefox options. It is advised to change the 'Remember visited pages for the last ___ days' box to a 0 (zero) value. Uncheck the 'Remember what I enter in forms and the search bar' box. This guarantees that none of your searches are stored in your cache that may be accessed by someone else.

Access to the cookies settings can be found in the 'Privacy' tab of the Firefox options. Firefox offers control of cookies by allowing the user the choose whether or not to accept cookies at all. A user may choose the 'Exceptions' and then choose to allow, temporarily allow or block cookies from a website. This setting is offered irrespective of the user's choice to allow/disallow a cookie. User discretion is advised here to allow or cookies at all and then give selective accept/deny to cookies.

Firefox allows you to clear all private data, Browsing History, Download History, Saved Forms Information etc. Automatically every time you close a session rather than you manually doing it. We can achieve this by clicking the 'Tools|Options' menu item and then clicking the 'Privacy' tab. Under the 'Private Data' section, check the 'Always clear my private data when I close Firefox' check box. The 'Settings' control offers you the control of what gets deleted upon every exit. Remember to check the cookies to be cleared. However, whether or not to clear the saved passwords depends on the user's preference to use the Password Manager facility. The 'Ask me before clearing private data' option prompts you to decide to clear private data at session close. A check mark indicates a prompt each time session close.