Disclaimer: This article is for general information only. We are not a technology security company, and nothing here is professional cybersecurity advice. Online threats and privacy laws change frequently, and the right protections depend on your devices, accounts, and needs. Always follow the official guidance of the service you use, and get help from a qualified professional for sensitive or high-risk situations.
Most Americans share more personal data online than they realise. Every account you create, every app you install, every search you make, and every photo you post can reveal something about you: your name, your address, your daily routine, your health, your finances, and your opinions. Much of that data is used for ordinary things, such as showing you relevant ads or keeping your account secure. Some of it, however, can be stolen in a data breach, sold by a data broker, or used for identity theft, fraud, and scams.
Protecting your personal data online is not about buying one app or ticking one box. It is about building a few strong habits, using the security tools that are already built into your accounts, and checking your privacy settings regularly. This guide explains how to do that in the United States in 2026, starting with the step that matters most: your passwords.
Start with strong, unique passwords
Your password is the first line of defence for almost every online account. If you use the same password for your email, your bank, and your shopping accounts, a single breach can give a criminal the keys to all of them. Email is especially important, because access to your email often allows a criminal to reset passwords on your other accounts.
Use a different password for every important account, especially email, banking, and financial services. A good password is long, at least 12 to 16 characters, and hard to guess. A passphrase made of several unrelated words, such as correct-horse-battery-staple, can be both strong and memorable, and adding numbers or symbols makes it stronger still. Never use your name, birthdate, phone number, pet’s name, or a simple pattern such as 123456 or password123, and never share your passwords by email or text message.
The simplest way to manage unique passwords is a password manager, such as the one built into your browser or a reputable standalone app. A password manager stores your passwords in an encrypted vault, generates strong random passwords for new accounts, and fills them in for you when you log in. You only need to remember one strong master password. If that sounds like a single point of failure, it is a much safer one than reusing the same password everywhere, and a good manager will alert you if a saved password appears in a known breach.
Turn on two-factor authentication everywhere
Two-factor authentication, often called 2FA, adds a second check when you log in. Even if a criminal learns your password, they cannot get into your account without the second factor, which might be a code from an authenticator app on your phone, a code sent by text message, a fingerprint, or a physical security key. Turn it on for your email, bank, social media, cloud storage, and any service that offers it, starting with the accounts that hold your money or your identity documents.
Authenticator apps are generally safer than text messages, because text messages can be intercepted or redirected through a scam called SIM swapping. A physical security key is the strongest option, and it is worth considering for your email and financial accounts if you are a frequent target or you manage sensitive information. Save the backup codes that a service gives you when you set up 2FA, and store them somewhere safe offline, such as a locked drawer, so you can regain access if you lose your phone.
Keep your devices and software up to date
Most data theft does not come from a clever new hacking technique. It comes from old software with a known flaw that was never patched. Turn on automatic updates for your phone, computer, tablet, and web browser, and update apps promptly. That includes the operating system and the apps you use less often, because attackers look for the forgotten app with an old vulnerability.
Use an up-to-date browser with built-in protections against phishing and malware, and be careful with browser extensions. An extension can read much of what you do online, so install only extensions from reputable developers that you actually need, and remove the ones you no longer use. Use reputable antivirus or security software if your device does not already include it, and back up your important files regularly to an external drive or a trusted cloud service, so a lost, stolen, or infected device does not mean losing your photos and documents.
Understand what the law does and does not protect
There is no single comprehensive federal privacy law in the United States. Instead, privacy is covered by a patchwork of federal laws for specific sectors, such as health and finance, and by state privacy laws that vary widely. Several states, including California, Virginia, Colorado, and Connecticut, give residents rights to know what personal data a business collects, to request deletion or correction, and to opt out of the sale of their data or targeted advertising. Other states offer fewer rights.
Check the privacy law in your state, and use the rights it gives you. A state attorney general’s website or the privacy page of a major company will usually explain how to submit a request. You do not need a lawyer to ask a company what data it holds about you, but you should expect the process to take time, and some companies will only respond to a verified request from the account holder.
Check your privacy settings regularly
Privacy settings are often set to share more than you expect. Spend an hour a year checking the settings on your major accounts. On social media, limit who can see your posts, your friends list, your location, and your photos. Turn off location sharing for apps that do not need it, such as a game or a shopping app. On your phone, check which apps can access your contacts, photos, microphone, and camera, and remove permissions that an app does not need to work.
Search engines and browsers also keep a record of what you search for and where you go. Use the privacy controls in your browser and search engine to delete your history regularly, or use a browser that blocks trackers by default. You can also use the advertising settings of major platforms to see the interests and categories that have been assigned to you, and to turn off personalised ads. You will still see ads, but they will be less based on your private life.
Recognise phishing and scams
Many data breaches start with a convincing email, text message, or phone call. A message may claim to be from your bank, a delivery company, or a government agency, and ask you to click a link, download a file, or give a code. Official agencies and banks rarely ask for passwords or verification codes by email or text. Do not click links in unexpected messages. Instead, go to the company’s official website or app yourself, or call the number on the back of your card, and ask if the message is genuine.
Be suspicious of urgent messages that threaten to close your account, fine you, or arrest you unless you act now. That urgency is a classic scam technique. Check the sender’s address carefully, look for spelling errors or an unusual domain name, and be wary of offers that sound too good to be true. If a deal, a job, or a prize requires you to pay a fee up front or share a verification code, it is almost certainly a fraud.
Reduce your exposure to data brokers
Data brokers are companies that collect personal details from public records, purchases, and other sources, and sell lists of that information. Your name, address, phone number, and relatives can appear on people-search sites that anyone can use. You can ask many of these sites to remove your listing, although the process is slow and new listings can appear. In some states, such as California, you can use a single request to a data broker or a data broker registry to opt out, and there are reputable services that handle removal requests for you for a fee.
You cannot erase your data from the internet completely, but you can reduce the amount that is easy to find. Avoid posting your full address, phone number, or travel plans on public social media. Do not fill out online quizzes and surveys that ask for personal details in exchange for a result or a prize. The less information you put into public databases, the harder it is for a scammer to build a convincing story about you.
What to do after a data breach
If you receive a breach notice, do not ignore it. Change the password on the affected account, and on any other account that used the same password. Turn on 2FA if it is not already on. Check your bank and credit card statements for unfamiliar charges, and check your credit reports for new accounts you did not open. You can get a free copy of your credit report weekly from the major credit bureaus, and you can place a credit freeze, which prevents new accounts being opened in your name until you lift it.
If sensitive information such as your Social Security number was exposed, consider placing a fraud alert and, if necessary, filing a report with the Federal Trade Commission. Keep a record of notices, passwords changed, and calls made, because that record helps if identity theft is reported later.
A simple privacy routine for 2026
Protecting your personal data online does not require a technical background. Use a password manager and unique passwords. Turn on two-factor authentication. Update your devices and browser. Check your privacy settings twice a year. Think before you post, click, or share a code. Reduce the data that brokers can sell about you. If a breach happens, act quickly to change passwords, freeze your credit, and watch your statements. Those habits will not make you invisible online, but they will make you a much harder target, and they give you control over the information that matters most.