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What is malware and how can it threaten your money

Malware can steal your banking credentials and drain your accounts. Learn what malware is, how to spot it, and five steps to protect your money.

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Malware is software designed to harm your device or steal your data. It can also break into your financial accounts. It doesn’t just slow your computer down. It can intercept your banking credentials and drain your accounts before you notice. Understanding malware is a key step in preventing financial scams.

The good news: you don’t need to be a tech expert to protect yourself. Here are five things you need to know about malware and your finances.

Five things to know about malware and your finances

1. Malware is software built to harm you

“Malware” is short for malicious software. It covers any program built to harm your device or steal your data. The Federal Trade Commission’s guide to malware protection offers a good overview of how these threats work.

You may have heard of viruses. A virus is one type of malware. But the category is bigger than that. It also includes ransomware and spyware, among other threat types.

All viruses are malware, but not all malware is a virus.

And it doesn’t just target computers. Malware affects phones and tablets too — the same devices you use to check your balance and send money.

2. How malware gets onto your phone or computer

Malware needs a way onto your device. According to CISA’s ransomware prevention guide, these are the most common entry points:

  • Phishing messages. Texts or emails with links that look real but aren’t. A message might pretend to be from your bank or a delivery service.
  • Fake apps. Downloads from outside the official app store can carry hidden malware.
  • Infected email attachments. Opening the wrong file can install malware silently.
  • Compromised websites. Some sites install malware just by loading in your browser.
  • Public Wi-Fi. Unsecured networks give attackers a way to intercept your data.

The pattern is the same every time. Someone tricks you into clicking a link or downloading something you should not trust.

3. Signs your device might be infected

Malware often works quietly. But there are warning signs. Watch for these:

  • Your device is noticeably slower than usual
  • Your battery drains faster than normal
  • Pop-ups or ads appear even when you’re not browsing
  • You spot apps you don’t remember installing
  • Your data usage spikes unexpectedly
  • You see unauthorized transactions or login alerts on your financial accounts

That last one is the most urgent. If you notice charges you didn’t make, treat it as a serious signal and act fast.

4. How to protect yourself from malware

A few habits make a real difference:

  • Keep your software updated. Updates patch the security gaps malware exploits. NIST cybersecurity guidance recommends this as one of the most effective protective steps.
  • Download apps from official stores only. Google Play’s app security practices and the Apple App Store screen for threats.
  • Don’t click unexpected links. Even if a text or email looks like it’s from your bank, go directly to the app instead.
  • Use strong, unique passwords. Enable two-factor authentication on every financial account.
  • Review your transactions regularly. Catching a small unauthorized charge early can prevent a bigger loss.

5. What to do if you think your device has malware

First, stay calm. Discovering malware is stressful, but acting quickly is what matters. Take these steps:

  1. Disconnect from the internet. Turn off Wi-Fi and mobile data to stop malware from sending your information out.
  2. Run a security scan. Use your device’s built-in security tools or a trusted antivirus app. Apple’s security features can help you get started.
  3. Change your financial passwords. Do this from a different, clean device.
  4. Contact your bank. If you notice any unauthorized transactions, let them know right away.
  5. Factory reset if needed. If nothing else resolves the issue, reset your device. Back up important files first.

You’re not alone in this. Taking these steps puts you back in control.

Staying ahead of malware

Malware is a real threat. But it’s one you can defend against with simple, everyday habits.

Update your software regularly and question any unexpected message. Review your accounts often. Your awareness is your strongest protection. Platforms that prioritize information security are working to help.

Consistent caution with your money makes a real difference.


FAQ

Can malware steal money from your bank account?

Yes. Certain types, like banking trojans and spyware, can capture your login credentials and intercept verification codes. Monitoring your accounts regularly is the best early defense.

Is malware the same as a virus?

Not exactly. A virus is one type of malware. The term “malware” covers a wider range of threats, including ransomware, spyware, and trojans.

How does malware get on your phone?

Common ways include phishing texts with malicious links, fake apps downloaded outside official stores, and compromised websites. Be cautious with any link or download you didn’t expect.

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