What Does Incognito Mode Do? Less Than That Little Spy Icon Suggests

By Chris Clark, founder of Senior Tech Cafe

Incognito mode stops your browser from saving your history, cookies and anything you type into forms on your own device once you close the window. That’s what Incognito mode does, and nearly all it does: the websites you visit, your internet provider and whoever runs the Wi-Fi can still see your activity.

You’re on the shared family computer, trying to look up a surprise anniversary gift for your spouse. Or maybe you’re trying to figure out why your left knee makes a noise like a rusty gate every time you stand up. You’d really rather not have ads for velvet Elvis paintings or joint supplements following you around the internet for the next six months.

So you click “New Incognito Window.” The screen goes dark. A little icon of a spy in a hat and glasses appears. Suddenly, you feel like James Bond. You’re completely invisible to the digital world, right?

Well, not exactly. Incognito mode is genuinely useful, but expecting it to hide everything is like closing your eyes and believing nobody in the room can see you. Here’s what it actually does, who can still see you, and when it’s worth using.

The Hotel Room Analogy: How Incognito Actually Works

To understand private browsing, you need to separate two things: your own computer, and the network that connects it to everything else. A hotel room makes the difference easy to see.

Using Incognito mode is like renting a hotel room and being meticulous about cleaning up before you leave. You wipe down the counters, take the trash with you, and make the bed perfectly. When the next guest (say, your spouse using the computer after you) walks in, there’s no evidence you were ever there. Your browsing history is wiped the moment you close the window.

But the front desk still has a record of you checking in, and the hallway cameras still saw you walk to your room. Online, your internet provider (like Comcast, AT&T or Spectrum) is the front desk. It can still see which websites you visited, even after your computer has forgotten all about them. On secure sites, the ones with an address starting “https,” it sees the site’s name but not the pages you read or what you type.

Who Can Still See You in Incognito Mode?

In Incognito mode, the only people who can’t see what you did are the ones using the same device after you. Everyone between you and the website, and the website itself, can still see your activity. Here’s how it breaks down:

• Your spouse or grandkids, on the same device: They see nothing. Once you close every Incognito window, your history, cookies (the small files websites leave behind to remember you) and anything you typed into forms are gone.
• Your internet provider: It sees which sites you visit. Incognito doesn’t hide your connection. It knows you visited WebMD at 2:00 p.m., even if it can’t see which page.
• Your employer or the coffee shop: Whoever runs the Wi-Fi network can see which websites you visit, so never assume you’re hidden from the boss just because your browser window is dark. Our guide to public Wi-Fi risks covers the coffee shop side of this.
• The websites you visit: If you open an Incognito window and log in to Facebook, Facebook knows it’s you immediately. You’ve walked into a costume party wearing a mask, gone straight up to the host, and handed over your driver’s license.

If you want to hide your activity from the network as well, that’s a job for a different tool. Here’s what a VPN is and how it works.

The 2024 Reality Check: Even Google Got Caught

If you feel slightly misled by the word “Incognito,” you’re in good company. Millions of people felt the same way, and some of them took Google to court.

The lawsuit, filed in 2020, argued that Google kept collecting data about people’s browsing even while they used Incognito mode. Google settled in April 2024. It didn’t pay the users anything, but it agreed to destroy or anonymize billions of browsing records collected in private mode, to block third-party cookies in Incognito by default for five years, and to spell out more plainly what Incognito doesn’t hide. The plaintiffs’ lawyers valued the deal at more than $5 billion.

That’s why the screen you see when you open an Incognito window now says outright that websites, including Google’s, can still collect data about you. It’s a history eraser for your own computer, not a privacy shield for the internet.

The Hero Scenarios (When to Use It)

Private browsing earns its keep in four situations:

• Buying surprise gifts: This is the classic. It keeps your search for “best foot massager” out of the shared family history, and out of the ads your spouse sees next week.
• Using someone else’s computer: At the library, a hotel business center or a friend’s house, a private window means your logins and searches aren’t saved for the next person, as long as you close it when you’re done.
• Checking a second account: If you need to check a second email account or help a friend with theirs, an Incognito window lets you sign in without signing out of your own accounts first.
• Comparing prices: Some people swear travel sites raise prices when you look twice. That’s hard to prove, but a private window costs nothing and shows you what a brand-new visitor would see.

Is Incognito Mode Safe?

Incognito mode is safe to use, but it doesn’t make you any safer from scams, viruses or hackers. It’s a privacy feature for your own device, not a security feature. The same fake website or bad download can hurt you in a private window just as easily as in a regular one.

It does come with a few small bonuses worth knowing about:

• Chrome blocks third-party cookies in Incognito by default. Those are the cookies advertisers use to follow you from site to site.
• Safari on an iPhone, iPad or Mac locks your private tabs when you lock your device, so anyone who picks up your phone later needs your passcode or Face ID to see them.
• Chrome, Edge, Firefox and Safari turn off most extensions in private windows unless you allow them, which matters for the ad blocker tip below.

And it can’t undo anything. If you sign in to an account, that account keeps its own history no matter what kind of window you used. For the many other ways sites keep tabs on you, see our guide to website trackers.

How to Go Incognito: The Master Shortcut List

Every major browser has a private mode. They just can’t agree on what to call it. Here’s how to open one, by device.

On a computer:

• Google Chrome: Press Ctrl + Shift + N on Windows, or Command + Shift + N on a Mac.
• Microsoft Edge (where it’s called InPrivate): Press Ctrl + Shift + N.
• Mozilla Firefox: Press Ctrl + Shift + P on Windows, or Command + Shift + P on a Mac.
• Safari on a Mac: Click File, then New Private Window, or press Shift + Command + N.

Private browsing on iPhone and iPad (Safari):

1. Open Safari and tap the Tabs button (two overlapping squares). If you don’t see it, tap the More button (three dots), then All Tabs.
2. Swipe right along the bar at the bottom of the screen until you reach Private.
3. Tap Unlock if asked, then open a new tab. The address bar turns dark so you know you’re in private mode.

Chrome on an Android phone or an iPhone: Tap the three dots, then New Incognito tab. Apple and Google move these buttons around every year or two, so if yours look different, look for the word Private or Incognito near your tabs.

Tip: Your ad blocker is probably switched off in private windows, because browsers turn extensions off there by default. In Chrome, go to the three dots, then Extensions, then Manage Extensions. Click Details under your ad blocker and switch on Allow in Incognito.

Questions About Incognito Mode

Does Incognito Mode Hide My IP Address?

No. Your IP address works like a return address on everything you send online, and Incognito mode doesn’t change it. Websites can still see roughly where you are, often down to your city. If you want to hide your IP address, you need a different tool, a virtual private network, usually called a VPN.

Is It Safe to Do My Online Banking in Incognito Mode?

It’s safe, but it isn’t safer than a normal window. Your bank’s security depends on its own encryption and your login protections, not on private browsing. Incognito does help on a shared or public computer, because your login details and the pages you opened aren’t saved for the next person once you close the window.

Will Private Browsing Stop Targeted Ads?

Only for that session, and only partly. Inside a private window, sites can’t read the cookies from your regular browsing, so ads based on your past shopping fade. But the moment you sign in to Google, Amazon or Facebook in that window, they know exactly who you are and can tailor ads again.

Can My Family See What I Looked at in Incognito Mode?

Not on the device itself, once you close every private window. Your history, cookies and form entries are wiped. They can’t scroll back through it. But anyone who manages your home Wi-Fi router may be able to see which sites the household visited, and any account you signed in to keeps its own record.

A Broom, Not an Invisibility Cloak

Incognito mode is a handy, easy feature, as long as you treat it as what it really is: a digital broom for sweeping up your tracks on your own computer, not an invisibility cloak for the entire internet.

Now that you know what’s behind the spy mask, you can use it with confidence. Go ahead and research that noisy knee in peace. Just remember that the internet company still knows you’re doing it. For the rest of the checklist, start with our online safety guide for seniors.