How to Protect Your Data From Hackers: 5 Steps

How to Protect Yourself and Your Data from Internet Hackers

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To protect your data from hackers, use a password manager, turn on multi-factor authentication, keep your software updated and share less about yourself online. Most breaches don't come from advanced attacks but from small oversights, gaps that are easy to miss and just as easy to close. This guide walks through each step, no panic required.

Key takeaways

Use a password manager to create and store a long, unique password for every service.
Turn on multi-factor authentication, starting with email and banking, and prefer an authenticator app or security key over text codes.
Turn on automatic updates for your operating system, browser and most-used apps so you get security fixes without remembering.
Hover over links before you click and look for subtle misspellings in the URL.
Don't bank or log into important accounts on public Wi-Fi, and use a trusted VPN when you must connect.

How to protect yourself from internet hackers: a checklist

Each habit below closes a specific gap. Start at the top.

What hackers exploit	What to do
Reused or weak passwords	Keep a long, unique password for every service in a password manager
A stolen password	Turn on multi-factor authentication on all key accounts
Known flaws in old software	Turn on auto-updates for your operating system and apps
Apps that collect more than they need	Audit and limit the permissions of your applications
Old accounts you forgot about	Delete accounts you no longer use
Public Wi-Fi	Skip sensitive tasks or use a trusted VPN

Table: Common gaps hackers use and the habit that closes each one.

How to protect yourself from hackers and viruses

The basic steps are well documented. You'll find the same advice from government sources like CISA's Secure Our World campaign and from major security firms. Treat them as the baseline.

Step 1: Manage your passwords

Your passwords are your first line of defense. Human memory isn't a reliable security tool, so use a dedicated password manager to generate and store long, unique passwords for every service.

Never reuse a password. A breach at one minor service should never put your main email or your bank login at risk.

Step 2: Turn on multi-factor authentication

Turn on multi-factor authentication wherever it's available, starting with email and banking. An authenticator app or a physical security key protects you better than text message codes.

Step 3: Keep your software updated

Updates are rarely just about new features. They often contain critical patches for security flaws that hackers actively exploit. Turn on automatic updates for your operating system, browser and the apps you use most, and you get security fixes without having to remember.

Also read: Understand the different types of exposure

How to stay safe while you browse

Most attacks rely on human error, not technical skill. Staying safe online mostly means slowing down before you click.

How to recognize phishing and social engineering

Phishing attacks are built to create urgency. They want you to act before you think. The FTC has a good guide on how to recognize and avoid phishing scams, and we cover the warning signs in how to spot a phishing email.

Verify the source. Hackers often pose as trusted institutions such as banks, employers or government agencies. If you get an unexpected request for sensitive information, check it before acting.
Examine links. Hover over a link before clicking and look for subtle misspellings in the URL.
Share less. Part of protecting yourself is knowing what not to do. Don't post sensitive personal information about yourself publicly.

How to use public Wi-Fi safely

Public Wi-Fi without protection carries risks. Never do your banking or log into important accounts on an unencrypted public network. When you must use one, a trusted virtual private network (VPN) encrypts your traffic and shields your activity from anyone watching the network.

How to keep less of your data online

Hackers can only use what they can find. Cutting down how much of your data is out there is the next layer.

Audit your accounts. Review your online accounts regularly and deactivate or delete the ones you no longer use.
Get off people-search sites. Your home address and phone number on a data broker site make phishing and impersonation much easier. Our guide on how to delete yourself from the internet shows how to get them taken down.
Limit permissions. When you install a new app, keep the data it can reach to a minimum. Does that weather app really need your contact list?

How to secure your phone and laptop

Your phone and laptop hold most of your accounts, so lock them down too.

Use full disk encryption. Make sure your phone and computer are encrypted: FileVault on macOS, BitLocker on Windows, and on by default on modern iOS and Android.
Lock your screen. Use a PIN or biometric lock on every device, so a lost phone doesn't mean lost accounts.

Also read: How to remove search results about you from Google

How Serus helps protect your data

The habits above are yours to keep. The part that's painful by hand is finding every data broker and people-search site that lists you, and sending removal requests again when your data reappears. Serus does that for you, and it monitors the dark web and breach databases so you get an alert when your email or passwords turn up.

Run a free scan to see where your data is exposed.

A silver padlock and a ring of keys on a light grey background, a banner image for Serus Protection

Questions

What is the easiest way to protect against hackers?

Turn on multi-factor authentication (MFA) for your main accounts, starting with email and banking. It adds a second check that a stolen password alone can't get past.

What are 5 ways to secure data?

Use a unique password for every service, kept in a password manager. Turn on MFA, ideally with an authenticator app or a security key. Encrypt your devices, delete accounts you no longer use, and keep your software updated.

Is a VPN enough to make public Wi-Fi safe?

A trusted VPN encrypts your traffic and shields your activity from anyone watching the network. Even with one, it's best not to do your banking or log into important accounts on an unencrypted public network.

Why does it matter if my address is on a people-search site?

Your home address and phone number on a data broker site make phishing and impersonation much easier. Getting those listings taken down leaves hackers less to work with.

Do I need to encrypt my phone and laptop?

Yes. Modern iOS and Android phones are encrypted by default, and on a computer you turn on FileVault on macOS or BitLocker on Windows. Add a PIN or biometric lock so a lost device doesn't mean lost accounts.