Your online accounts contain more personal information than you may realize. Email, social media, cloud storage, shopping accounts, school or work platforms, and financial services can all contain information that you don’t want falling into the wrong hands.

The good news is that protecting your accounts doesn’t require being a cybersecurity expert. A few practical habits—such as using unique passwords, enabling multifactor authentication, recognizing phishing, and keeping software updated—can significantly strengthen your digital security.

In this guide, we’ll cover 20 ways to secure your online accounts, explain why each matters, and provide practical steps you can take to reduce the risk of unauthorized access.

1. Use Strong, Long, and Unique Passwords

A strong password is still one of the foundations of online account security.

Avoid passwords based on easily discovered information such as your name, birthday, school, favorite team, or other personal details. Instead, use a long password or passphrase that is difficult to guess.

Current CISA guidance recommends passwords that are long, random, and unique, with 16 or more characters as a useful target.

A strong password should be:

Long enough to resist guessing.
Unique to one account.
Difficult to associate with you personally.
Generated randomly when possible.
Kept private.

If remembering long passwords seems difficult, a password manager can do the work for you.

2. Never Reuse Passwords Across Accounts

Using the same password everywhere creates a serious security problem.

Imagine you use the same password for your social media, email, and shopping accounts. If one service experiences a breach and your password becomes exposed, someone may attempt to use those same credentials on your other accounts.

This is why every important account should have its own password.

One account = one unique password.

Unique passwords limit the damage if one credential is compromised. The FTC specifically advises against password reuse because stolen credentials may be tried against other accounts.

3. Use a Trusted Password Manager

Creating a different strong password for every account sounds simple—until you have dozens of accounts.

That’s where a password manager can help.

A password manager can:

Generate strong random passwords.
Store passwords securely.
Fill login information when appropriate.
Reduce password reuse.
Help you manage many unique credentials.

CISA recommends password managers because long, random, unique passwords can be difficult for people to remember manually.

Instead of remembering dozens of passwords, you generally need to protect the password or authentication method used to access the password manager itself.

4. Enable Two-Factor Authentication or MFA

A password alone isn’t always enough.

Two-factor authentication (2FA) or multifactor authentication (MFA) adds another verification step when you sign in.

For example:

Password → Authentication code → Account

Depending on the service, the second factor could be an authenticator app, security key, biometric method, or another supported option.

CISA recommends MFA because it makes unauthorized access more difficult even when a password has been compromised. It also recommends choosing phishing-resistant MFA where practical.

Prioritize MFA for:

Primary email.
Financial accounts.
Cloud storage.
Social media.
School or work accounts.
Other accounts containing sensitive information.

5. Protect Your Primary Email Account

Your primary email account deserves special attention.

Why? Because email is often connected to password-reset systems for other accounts. If someone gains control of your email, they may be able to receive password-reset messages and attempt to take over additional services.

The FTC specifically warns that access to a compromised email account can potentially allow someone to obtain password-reset links for other accounts.

To secure your email:

Use a unique password.
Enable MFA.
Review recovery information.
Check recent login activity.
Remove unfamiliar devices or sessions.
Keep your email software and device updated.

Think of your primary email as a master key to your digital life.

6. Learn to Recognize Phishing Scams

Phishing is one of the most common ways criminals try to steal login information.

A phishing message may pretend to come from a familiar company, friend, school, service, or organization. It may ask you to click a link, open an attachment, sign in, or provide sensitive information.

Watch for warning signs such as:

Unexpected login alerts.
Urgent demands.
Suspicious links.
Unexpected attachments.
Requests for passwords or verification codes.
Messages that create panic or pressure.
Unfamiliar sender addresses.

CISA identifies recognizing and reporting phishing as one of its fundamental online-security practices.

When in doubt, don’t use the link in the message. Instead, open the official app or website yourself and check whether there’s actually a problem.

7. Never Share Passwords or Verification Codes

Your password and authentication codes should remain private.

Scammers may impersonate customer support, companies, friends, or other trusted people and ask for a verification code.

Don’t provide it simply because someone says it’s necessary.

The FTC advises consumers not to share verification codes when they did not initiate the contact.

A useful rule is:

If you didn’t initiate the login or security action, don’t approve it or provide its code.

8. Keep Your Operating System and Apps Updated

Software updates aren’t just about getting new features. They can also fix security weaknesses.

Cybercriminals may look for vulnerabilities in outdated operating systems, browsers, applications, and other software.

The FTC recommends updating software promptly because updates often contain important security patches. It also recommends enabling automatic updates where appropriate.

Keep these updated:

Windows, macOS, Linux, or other operating systems.
Smartphones and tablets.
Web browsers.
Mobile apps.
Security software.
Router firmware when applicable.

If automatic updates are available and suitable for your device, enabling them can make staying current much easier.

9. Secure Your Phone, Computer, and Other Devices

Your accounts are only as secure as the devices you use to access them.

Start with basic device protection:

Use a screen lock.
Keep the operating system updated.
Install applications from trustworthy sources.
Remove applications you no longer need.
Review app permissions.
Use built-in security features.
Don’t leave devices unattended and unlocked.

Your smartphone deserves particular attention because it may contain authentication apps, email, photos, messages, and access to numerous accounts.

If your device is lost, use the service’s official device-management or recovery features as soon as possible.

10. Secure Your Home Wi-Fi Network

Your router connects many of your devices to the internet, so it deserves attention too.

The FTC recommends changing default router credentials, using appropriate security protections, and keeping the router updated.

Basic steps include:

Change default administrator credentials.
Use strong Wi-Fi authentication.
Update router firmware.
Enable automatic updates if supported.
Review connected devices.
Use a guest network for visitors when appropriate.

A secure home network provides another layer of protection for the devices you use to access your accounts.

11. Review Account Login and Security Activity

Many online services provide information about recent logins, devices, locations, or security events.

Make a habit of checking these settings for important accounts.

Look for:

Devices you don’t recognize.
Unexpected login attempts.
Password changes you didn’t make.
New recovery methods.
Unfamiliar connected applications.
Security alerts you don’t recognize.

If you notice suspicious activity, use the service’s official security tools to secure the account.

Depending on the service, that may include changing your password, signing out other sessions, enabling MFA, and reviewing account settings.

12. Remove Old and Unused Accounts

Old accounts can become forgotten pieces of your digital footprint.

If you haven’t used an account for a long time, consider whether you still need it.

For accounts you no longer need:

Check whether important information needs to be saved.
Remove unnecessary personal information where possible.
Delete the account using the service’s official process.
Remove connected applications if applicable.

For accounts you must keep, make sure their passwords and security settings aren’t outdated.

Reducing the number of unnecessary accounts can make your overall digital security easier to manage.

13. Review Third-Party App Permissions

You may have connected various apps and services to your online accounts.

For example, an application may have permission to access your profile, files, calendar, contacts, or other information.

Periodically review connected apps and ask:

Do I still use this application?

If the answer is no, remove its access through the account’s official security settings.

This is especially useful for accounts you have used for many years because old permissions can easily be forgotten.

14. Strengthen Your Account Recovery Options

Security isn’t just about how you log in. It’s also about how you recover an account when something goes wrong.

Review:

Recovery email addresses.
Recovery phone numbers.
Backup authentication methods.
Recovery codes.
Trusted devices.
Security keys or other authentication options.

Keep recovery information accurate and protected.

Don’t post recovery codes publicly or share them with other people.

For important accounts, understand the recovery process before you need it.

15. Protect Your Accounts After a Data Breach

Data breaches can expose account information, including credentials.

If you learn that one of your accounts has been affected, act promptly.

Follow these steps:

Change the affected password.
Create a new, unique password.
Change that password anywhere else it was reused.
Enable MFA.
Review recent account activity.
Sign out unfamiliar sessions if the service allows it.
Check recovery information.
Watch for suspicious messages or login alerts.

The FTC advises changing compromised passwords and changing reused passwords on other accounts as well.

16. Be Careful With Public or Shared Devices

Logging into an account from a public or shared computer requires extra caution.

If you must use one:

Avoid saving passwords.
Don’t allow the browser to remember your login.
Sign out when finished.
Don’t leave an account open.
Be cautious about authentication prompts.
Avoid accessing especially sensitive services when you can use a trusted device instead.

FTC guidance also warns about remembering accounts on public computers when using two-factor authentication.

Whenever possible, use your own trusted device for sensitive account activity.

17. Check Your Privacy and Security Settings

Security and privacy aren’t exactly the same thing, but they work together.

Review your account settings periodically to understand what information you’re sharing.

Check:

Profile visibility.
Location-sharing settings.
Contact information.
Login notifications.
Connected applications.
Search visibility.
Data-sharing options.

Don’t automatically accept every permission request.

Before allowing an application to access information, ask whether it genuinely needs that access.

18. Be Careful About Personal Information You Share Online

Information that seems harmless by itself can sometimes help someone impersonate you or create convincing scams.

Think carefully before publicly sharing:

Full birth dates.
Personal contact information.
Home-related information.
Answers to common security questions.
Details about your routines.
Account or login information.

You don’t need to disappear from the internet. The goal is simply to avoid unnecessarily exposing information that could be useful to scammers.

The FTC recommends being cautious when someone unexpectedly requests personal information through email, text, phone, or other communication channels.

19. Monitor Your Accounts for Suspicious Activity

Security tools are helpful, but your own attention matters too.

Watch for signs such as:

Password-reset messages you didn’t request.
Login notifications from unfamiliar devices.
Unexpected account changes.
Messages you didn’t send.
Purchases or transactions you don’t recognize.
New connected applications.
Changes to recovery information.

If something seems wrong, don’t ignore it.

Use the service’s official website or app to investigate instead of clicking links in unexpected security messages.

Early detection can make it easier to regain control before an account problem becomes more serious.

20. Create an Online Account Security Routine

Online account security isn’t something you do once and forget.

Create a simple routine.

Regularly:

Review important account activity.
Check connected applications.
Remove unused devices.
Confirm recovery information.
Install software updates.
Review MFA settings.
Watch for phishing attempts.

CISA’s current consumer guidance emphasizes four foundational practices: update software, use strong passwords, turn on MFA, and recognize and report phishing.

The goal isn’t perfection. The goal is consistent security habits.

The 20-Point Online Account Security Checklist

Here’s a quick summary you can save:

☐ Use strong, long passwords
☐ Use a different password for every account
☐ Use a password manager
☐ Enable MFA
☐ Secure your primary email
☐ Learn to recognize phishing
☐ Never share verification codes
☐ Update software regularly
☐ Secure your phone and computer
☐ Protect your home Wi-Fi
☐ Review login activity
☐ Delete unnecessary accounts
☐ Review third-party permissions
☐ Secure account recovery options
☐ Respond quickly to data breaches
☐ Be careful on shared devices
☐ Review privacy settings
☐ Limit unnecessary personal information
☐ Monitor accounts for suspicious activity
☐ Make security reviews a regular habit

This checklist can also be turned into a printable security resource or infographic for your website.

What to Do If Your Online Account Is Hacked

Even with good security practices, account problems can happen. If you believe someone has accessed an account without permission, act quickly.

Step 1: Change the password

If you can still access the account, change the password immediately.

Step 2: Sign out other sessions

Use the account’s security settings to sign out unfamiliar or other active sessions where that option is available.

Step 3: Enable MFA

If MFA isn’t already enabled, turn it on.

Step 4: Review account settings

Check:

Recovery information.
Connected applications.
Recent activity.
Trusted devices.
Email forwarding or other account-specific settings.

Step 5: Protect other accounts

If the compromised password was reused anywhere else, change those passwords too.

The FTC recommends changing compromised passwords, signing out of accounts on other devices where possible, and enabling two-factor authentication.

Always use the service’s official recovery or support process rather than links provided in suspicious messages.

Common Online Account Security Mistakes

Even people who understand cybersecurity can make simple mistakes.

Avoid these common problems:

Using one password everywhere.
Choosing short or predictable passwords.
Ignoring MFA.
Clicking suspicious links.
Sharing verification codes.
Delaying software updates.
Ignoring security alerts.
Leaving old accounts active.
Giving unnecessary apps access to your account.
Failing to protect your primary email.
Ignoring account-recovery settings.

The strongest security strategy is usually a layered approach rather than relying on one tool.

Frequently Asked Questions About Online Account Security

What is the best way to secure an online account?

Use a strong, unique password, enable MFA, use a password manager when appropriate, keep your device and software updated, and learn how to recognize phishing attempts.

How can I protect my online accounts from hackers?

Start with your most important accounts. Use unique passwords, enable MFA, secure your email, update your software, protect your devices, review login activity, and avoid suspicious links and messages.

Should I use the same password for different accounts?

No. Reusing passwords increases the potential damage if one account’s credentials are exposed.

Is two-factor authentication really necessary?

MFA adds another layer of protection beyond a password. CISA recommends using MFA and, where possible, choosing phishing-resistant methods.

Is a password manager safe?

A reputable password manager can make it easier to create and maintain strong, unique passwords. CISA recommends password managers as a practical way to manage strong credentials.

How do I know if someone hacked my account?

Warning signs can include unfamiliar login alerts, unexpected password-reset messages, changes you didn’t make, unfamiliar devices, or activity you don’t recognize.

What should I do after a data breach?

Change the affected password immediately, create a unique replacement, change any reused passwords elsewhere, enable MFA, and monitor the account for suspicious activity.

How often should I check my account security?

There’s no need to wait for a specific annual date. Make security checks part of your normal digital routine, especially after receiving a security alert, changing devices, or learning about a breach.

Final Takeaway: Make Online Account Security a Habit

Securing your online accounts doesn’t require complicated technical knowledge. It starts with a handful of fundamentals and becomes stronger when those fundamentals work together.

Use long, unique passwords. A password manager can make them easier to manage. Turn on MFA for important accounts. Learn to recognize phishing. Keep your operating system, browser, apps, and security software updated. Protect your devices and home network. Review account activity and recovery settings regularly.

CISA’s recent cybersecurity guidance continues to emphasize strong passwords, password managers, MFA, software updates, and phishing awareness as foundational security practices.

You don’t have to change everything today.

Start with these five steps:

Secure your primary email.
Replace reused passwords with unique ones.
Enable MFA on important accounts.
Install pending software updates.
Learn to recognize suspicious messages and links.

Then work through the rest of the 20-point online account security checklist.

Your online security is built from small decisions repeated consistently. Start strengthening your accounts today, and make account security a habit rather than something you only think about after a problem occurs.