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|Security professionals recommend that users configure their web browser at the highest possible security setting. The higher the browser's security setting, the less likely malware will be able to infect your computer. However, please note that a higher security setting will also likely cause the browser to warn you more frequently before performing a task on the Internet.|
By default, Safari has security settings enabled. Go to Safari > Preferences > Security
To make your browsing experience with Safari extra secure, you want to check the option to Warn when visiting a fraudulent website. When you select this option, Safari displays a warning message when you attempt to visit a website that has been reported as fraudulent.
- Plug-ins: third-party plug-ins such as Adobe Flash displays multimedia content on web pages, such as video, audio, and images.
- Java: some animated websites, interactive features, timers, and other site enhancements on web pages are sometimes provided by Java.
We recommend checking the option for Block pop-up windows, which could possibly contain a Trojan or link you to an infected site. When selected, this option blocks most ads, files and forms displayed in pop-up windows.
Please note that some MIT websites, including eCAT and the MIT Learning Center, recommend temporarily allowing pop-ups in order to allow for full functionality when using those sites.
For Safari privacy settings, go to Safari > Preferences > Privacy
Cookies are used by websites to "remember" you when you return to that site later. Cookies can not contain viruses.
To remove all cookies and other website data from your Mac, click Remove All Website Data.... If you want to block Safari from storing cookies you can select to Never block, Always block, or to only block cookies From third parties and advertisers. Please note that eCAT requires you to allow Safari to store cookies, either temporarily or permanently, in order to allow for full functionality when using that site.
Some websites try to access your Mac's location in order to offer location-specific features and services. In order to prevent websites that you visit from accessing your location, you can ask Safari to prompt you daily for a site to have permission to access your location or you can deny websites from accessing your location entirely.
To protect your privacy, we recommend checking Ask websites not to track me and Prevent search engine from providing suggestions.
Note: These two options are only present in Safari 6.
Autofill on forms is another feature in browsers that can compromise your privacy and security. Go to Safari > Preferences > AutoFill.
Having online forms automatically populate can put you at risk if the forms request sensitive information (like a password). Others who use your computer could access information only you are authorized to have access to (like a personal bank account). AutoFill preferences allow you to select whether web forms automatically are filled.
- Using info from my Address Book/Contacts card: This fills any web form with your address, phone number and whatever other information you have stored in your Address Book/Contacts application.
- User names and passwords: This automatically puts your user name and password in forms to access secure information (it is recommended to deselect this check box to keep your user names and passwords safe).
- Other forms: To have any web form remember information you enter, select this box. Click edit to view the sites where your saved information resides. Deselect this box if you don't want any forms to remember your information.