The Security Center

Check your site and browser settings

Web site timeout

To protect your account, you will be automatically logged off of TD AMERITRADE's site if you are inactive for 55 minutes. You have the choice, however, to change this default setting.

Review page timeout

To protect your account, the review page you see after placing an order will time out after 90 seconds, unless you have enabled express trading.

Browser cache

Your cache is a location on your hard drive where Web information is temporarily stored. When it is stored, it allows your browser to quickly re-load Web pages. While this helps your computer display Web pages faster, it also stores information about what you've been seeing on your screen. It's therefore a good idea to empty (or clear) your cache regularly so that this information isn't readily available to hackers.

Cookie acceptance

Cookies are small pieces of data that go between servers and web browsers to track information about users. You must choose to accept cookies from TD AMERITRADE in order to use our secure Web site. TD AMERITRADE cookies DO NOT contain any personal information. You can configure your computer to accept specific cookies — i.e. TD AMERITRADE cookies.

Pop-up blocker

Pop-up blockers are software programs that keep advertisements and new windows from popping up on your computer screen. Although usually just aggravating, some pop-ups display inappropriate content, while others can be dangerous to your system.

Using a pop-up blocker reduces the potentially harmful threats. For maximum safety, consider changing your pop-up blocker to the highest possible level. But please recognize that our site does contain pop-ups so you'll have to account for this.

In order to view all information on the site--including most forms, results for the symbols and quotes you look up, and the Streamer Suite™ tools--you must do one of two things: add the TD AMERITRADE Web site to your list of "trusted" sites, or disable your pop-up blocker while you're on this site. Adding the TD AMERITRADE site to your list of trusted ones will allow pop-up windows only from this site (and any other sites on your list).

Many browser, toolbars, and Internet service providers (ISPs) include pop-up blockers as part of their service, so you may have one operating on your computer without realizing it. Check your pop-up settings to help make sure you're safe, and add TD AMERITRADE to your trusted sites.