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Use Facebook? One step can prevent things from coming back to haunt you

Kim Komando
Special for USA TODAY

People who want to snoop on someone's personal life, from divorce attorneys to prospective employers, can find a goldmine on Facebook.

Due to cyber attacks, Facebook recently created a tool for its Messenger app that encodes messages from end-to-end.

Fortunately, you can see exactly what you have posted online and remove it. You can change public posts to private posts only your friends see. And there’s a little-known trick that lets you download your entire Facebook history so you can go through each posting, message, chat conversation and more one-by-one.

Let’s start, though, with what shows up on your timeline.

Taming your activity log

If you’d like to go back and edit what shows up on your timeline, you can do that by reviewing your Facebook activity log.

To do this, sign in to your Facebook account. Then click the down arrow in the upper-right corner and select “Activity Log.” You can also access your Activity Log by clicking on the "View Activity Log" button found on the right side of the cover photo area of your Facebook page.

Depending on how active you are on Facebook, it could have thousands of entries to scroll through. Luckily, Facebook has a few tools to make things easier to find what you’re looking for.

Using filters to find and edit posts faster

In the left-hand column, you'll see a list of filters. These show you just the posts in your Timeline about those particular topics. For example, if you only want to look at things you've posted in the past, select "Your Posts." You can also just look at "Photos," things you've "Liked" and "Comments" you've made on posts, photos and videos.

Click the "More" link to see more filters like "Videos," "Groups," "Events," etc. You can then review these sections and click on the little pencil icon to hide them from your timeline.

Clearing your Facebook search history

To see your search history, look in the left column of the Activity Log and click "More," then click "Search" near the bottom of the list. You can delete individual entries by clicking the "circle with a slash" icon and selecting "Delete." You can also click "Clear Searches" at the top to wipe everything at once. Click here for step-by-step instructions with screenshots.

Don’t forget those Facebook apps

At the very bottom of the list of filters, you can also click on “All Apps” to see what apps you've installed and what posts they've made on your Timeline.

Luckily, you can change the settings on who can see the posts that the apps make. When you click on each one, a box will appear at the top of your screen. Click the arrow that says, “This app can post on your behalf to,” then select one of the options on the drop down list, which includes: “Public,” “Friends of Friends,” “Friends,” “Only Me” and “Custom.”

Don't let the past haunt you

Even if you're OK with your Facebook friends seeing some embarrassing posts, you might have posted something in the distant past that you wouldn't want strangers to see.

Changing every past post manually from "Everyone" to "Friends" could take days. Fortunately, Facebook has a quicker option. At the top of the page, click the upside-down triangle and select Settings.

Then click the "Privacy" link in the left-hand column. Under "Who can see my stuff?" click the "Limit Past Posts" link. Next, click the "Limit Old Posts" button to change the privacy setting of every post in your profile to "Friends."

Note that if you have posts that you want everyone to see, this will change those as well. You'll need to go change those posts back to "Everyone" manually.

See exactly what others can see

If you’re wondering what someone else can see when they view your Facebook page, there’s an easy way to check it. Go to your Facebook page and to the upper right, click the three dots next to the "View Activity Log" button and select "View as..."

This lets you see your Facebook page the way a stranger would, or any Facebook user you select. That way, you can quickly spot problem posts and change privacy settings or remove them.

Other critical settings to tweak

While you're tweaking old Facebook settings, take some time to review information you've added to your account in the past. Facebook asks for a lot of details about your life, like home address, that you probably shouldn't make public. Find out five details you should never give out on Facebook, and how to remove them if you have them in your account.

It’s also a good idea to lock down your Facebook timeline so that you have complete control over what gets posted there. Changing this setting will mean friends and family members can’t post anything on your timeline that you don’t want shared.

To do this, open your Facebook page and go into your Settings. In the left column select "Timeline and Tagging." In the right column, next to "Who can add things to my timeline?" look for "Who can post on your timeline?" and click the "Edit" link to the right. Change the setting from "Friends" to "Only Me." Now you're the only one who can post.

Download your entire Facebook History

If you are going through a divorce or want to make super sure nothing you don’t want others to see is lingering on your Facebook profile, take this extra step. You can’t beat having a complete history to go through. You’ll see all your photos, posts and videos you have shared, as well as your messages, your chat conversations, and more.  Click here for steps and screenshots of how to download your entire Facebook history.

Speaking of Facebook, have you "liked" my page on Facebook yet? There, you'll see updates about online privacy, security, funny videos, contests, call-in details for the "Kim Komando Show," and a lot more. Click here to "Like" my Facebook page now.

On the Kim Komando Show, the nation's largest weekend radio talk show, Kim takes calls and dispenses advice on today's digital lifestyle, from smartphones and tablets to online privacy and data hacks. For her daily tips, free newsletters and more, visit her website at Komando.com or send her an email.

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