Ask ten Facebook users who can see their posts and you will get ten different answers. The reason is that sharing on Facebook is not a single switch. It is a set of layers, each controlled by a different setting. A photo can be visible to your friends, to the friends of the person tagged in it, to the members of a group, to an app that has permission, to an advertiser who matches you in a targeted audience and to the platform’s own systems. This guide draws a map of those layers so you can see where your information goes and where to narrow it. Menu names change over time, so treat the setting names as search terms. For the lifecycle view, see what happens to your data on Facebook, and for the settings steps, how to use Facebook privacy settings.
1. Layer 1: Always-public basics
Certain profile elements are generally public by design so people can find you: your name, profile picture, cover photo and username, along with your user ID. Some other details may be public by default depending on how you set up the account. Treat these as visible to anyone and choose them accordingly. Avoid a profile photo that shows your house number or a workplace badge, and consider whether you want your full name used.
2. Layer 2: The audience you choose
Each post, photo and profile field has an audience.
| Audience | Who sees it |
|---|---|
| Public | Anyone, on or off Facebook, including search engines |
| Friends | People on your friends list |
| Friends except | Friends minus people you exclude |
| Specific friends | Only chosen friends |
| Only me | Just you |
| Custom lists | Groups you create, such as close friends or family |
| Groups | Members of that group, depending on group type |
The default for new posts is whatever you last chose or what your settings specify, so check it. See is it a problem if I set my Facebook and Twitter profiles to public.
3. Layer 3: Friends of friends and tags
Your audience grows through other people. If a friend tags you in a post, the post may be visible to their audience and yours. If someone shares your photo, it travels in their network. Settings let you review tags before they appear on your profile and limit who can see posts you are tagged in. See how to keep your tagged pictures private on Facebook. Your friends list also reveals who you know, and it can be used by scammers to clone profiles. See what not to put on Facebook.
4. Layer 4: Groups, events and pages
Posts in groups follow the group’s rules: public groups can be seen by anyone, private groups by members. Your membership may be visible to others. Events can reveal where you will be and who is attending. Pages you like or follow can reveal interests. Review the visibility of each, and leave groups you no longer need.
Curious what’s already out there? Wiperts’ 100% Free Diagnosis shows which data brokers are listing your name, home address and phone number. Check your exposure free — it takes about a minute.
5. Layer 5: Apps and websites you connect
When you use Facebook to log in to a game, a shopping site or a quiz, you grant it access. That access can include your public profile, email, friends list, birthday and activity, depending on what you approved. Apps can keep that data even if you stop using them. Past controversies show how widely such data can travel. See Facebook apps collect and sell personal information. Open the apps and websites settings, remove those you do not use and check the permissions of those you keep.
6. Layer 6: Advertisers and measurement
Advertisers do not usually receive a file of named profiles. They choose audiences based on traits and interests, upload their own customer lists to match with users and receive aggregate reports on performance. Meanwhile, businesses can share data about your activity on their sites and apps with the platform through tools like the Meta Pixel. Your ad preferences show topics and advertisers connected to your account. Review them, hide what you do not like and use the off-Facebook activity controls to disconnect outside activity. See Facebook’s all-seeing eye.
7. Layer 7: Partners, service providers and legal requests
The company also shares data with service providers that help operate the platform, with partners for measurement and research as its policy describes, and with authorities when required by law or to protect safety. This layer is mostly outside your direct control, which is why the earlier layers matter most. The FTC publishes enforcement news and consumer guidance about social media privacy at ftc.gov and consumer.ftc.gov.
8. The sharing you do not see: data brokers and search engines
Facebook is not the only place information about you sits. People-search sites list your name, address and phone number from other sources, and they link to social profiles. Search engines may index your public profile. A well-configured Facebook account does not affect these. Remove broker listings with official opt-outs such as Spokeo and the PeopleConnect suppression center. See how to opt out of the most popular people search sites. To keep search engines from linking to your profile, adjust the setting that controls whether outside search engines can show it.
9. How to audit your sharing in 20 minutes
| Step | Task |
|---|---|
| 1 | Use the profile preview tool to view your profile as the public and as a friend |
| 2 | Run the Privacy Checkup and review default audience |
| 3 | Open the activity log and filter by audience Public |
| 4 | Limit past posts to friends |
| 5 | Review tags and timeline settings |
| 6 | Remove unused apps and websites |
| 7 | Review ad preferences and off-Facebook activity |
| 8 | Check group and event visibility |
| 9 | Turn on two-factor authentication |
| 10 | Opt out of broker sites that mirror your details |
10. What actually changes when you tighten Facebook settings
Many people assume that adjusting privacy settings stops data sharing altogether. In practice, settings mostly control who else on the platform can see your content; they do not remove the information the company itself collects from your activity, your device and the partner sites and apps that connect to your account. Understanding that difference keeps expectations realistic.
The settings that matter most are the ones that reduce what leaves the platform. Review which third-party apps and websites are connected through your login and remove any you no longer use, since each one can receive profile information. Turn off options that let other people look you up by phone number or email, limit who can see your friend list, and review old posts that are still public. Download your own data archive occasionally so you can see what the platform holds, and delete categories you do not want kept.
Finally, remember that anything you post can be copied. Public profile details are routinely scraped into people-search and marketing databases, which is why removing those downstream listings, as described in our data broker overview, is a separate job from cleaning up the account.
11. Three scenarios and what to do
Scenario 1: You share family photos. Create a custom list of relatives, use it as the audience, turn on tag review and remove location tags.
Scenario 2: You run a small business. Use a Page for public posts and keep your personal profile private. Do not use your home address or personal phone on the Page.
Scenario 3: You are in a difficult life transition. Restrict audience to close friends, hide your friends list, review groups and remove your new address from people-search sites. See securing online privacy post-breakup.
12. Myths and facts
| Myth | Fact |
|---|---|
| Friends only means only my friends see it | Tags and shares can extend reach |
| Deleting a post deletes copies | Screenshots and shares may remain |
| Advertisers get my profile | They target audiences, but data flows both ways |
| Apps lose access when I stop using them | Access remains until removed |
| Private profile means invisible online | Brokers and search engines may still list you |
13. Common mistakes
- Never checking the default audience for new posts.
- Forgetting past posts still public.
- Leaving old games and quizzes connected.
- Posting events with exact addresses publicly.
- Ignoring group visibility.
- Assuming privacy settings extend beyond Facebook.
14. Questions to ask yourself
If a stranger opened my profile today, what would they learn? Which of my friends might share my posts widely? Which connected apps do I still use? Which groups reveal sensitive interests? What would a scammer do with my friends list? These questions help you decide which layer to narrow first.
15. How Wiperts fits
Facebook sharing settings cover one platform. Wiperts covers the databases that reflect you elsewhere. It scans more than 100 data brokers and people-search sites for your name, address and phone numbers, submits removal requests, removes your personal results from Google and Bing, blurs your home on maps and monitors continuously so profiles that return are removed again.
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- First Name
- Last Name
- Select State
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16. Key takeaways
- Facebook sharing has seven layers: public basics, chosen audience, friends of friends and tags, groups and events, connected apps, advertisers and partners and legal or provider sharing.
- Narrow each layer with audience, tag, app and ad controls, and audit them quarterly.
- Facebook settings do not remove broker listings or search engine results.
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|---|---|---|---|
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Every plan includes removal of your name, date of birth, salary, home address and phone number from 100+ data brokers and people-search sites, Google and Bing search-result removal, home blurring on maps, and 24/7 monitoring that re-removes your data if it reappears. See plans and start your removal
17. Frequently Asked Questions
What does Facebook share about me publicly?
Some basics such as your name, profile and cover photos and username are generally public, along with anything you or others set to public. Other fields depend on your audience settings.
What can friends of friends see?
If you choose that audience, or if a friend tags you in a post visible to their friends, people connected to your friends can see it. Check each post and tag setting.
Does Facebook share data with advertisers?
Advertisers target audiences through Facebook’s ad system and receive measurement reports, rather than a list of named profiles, though data from partners and advertisers also flows into the system. Review ad preferences.
What do connected apps see?
Whatever you permitted when you connected them, which can include your profile, friends list, email and activity. Review and remove apps you do not use.
How do I see what I share?
Use the View As or similar preview tools, the Privacy Checkup and the activity log to review audiences and posts.
Can I limit all sharing?
You can narrow it a lot with audience, tag, app and ad settings, but some basics remain public and the platform itself still holds your data.
Sources
Related Reading
- How to Use Facebook Privacy Settings to Protect Your Information
- What Happens to Your Data on Facebook? From Collection to Deletion
- What Not to Put on Facebook: Protecting Your Personal Info
- Do Facebook Apps and Third-Party Connections Collect Your Data?
- How Facebook Tracks You and How to Limit It (2026)
- Is It a Problem to Set Your Facebook and X Profiles to Public?
- How to Keep Your Tagged Photos Private on Facebook
- Why Does Facebook Save Everything We Do on Their Network?
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