The core steps that actually stop most account takeovers
Most bank account hacks happen because a hacker either steals your password or tricks your bank into handing over access. You stop both by using a unique password that only you know, turning on two-factor authentication (a second login step), and never giving your login details to anyone who contacts you first. These three things block the methods that work on most people.
The rest of this guide walks through what each step does, what to watch for, and what to do if you spot suspicious activity. The goal is to make your account harder to break into than the next person's—hackers move on when the work gets difficult.
Key Takeaways
- Use a password that is at least 12 characters long, mixes letters and numbers, and is different from every other password you use.
- Turn on two-factor authentication through your bank's website or app so that logging in requires both your password and a code sent to your phone or email.
- Never share your password, PIN, or one-time codes with anyone—your bank will never ask for these by phone, email, or text.
- Check your account statements and transaction history weekly for charges you do not recognize, and report them to your bank within 24 hours.
- Set up account alerts through your bank so you get notified by text or email when money moves or your login details change.
Create a password that hackers cannot guess or crack
A strong password is your first wall. Make it at least 12 characters long and mix uppercase letters, lowercase letters, numbers, and symbols (like ! or #). Avoid words from the dictionary, your name, your birthday, or anything someone could learn from your social media. A password like BlueMoon#2847Desk is stronger than Password123 or Jennifer1985.
Use a different password for your bank account than you use anywhere else. If a hacker breaks into your email account or a shopping site, they will try that same password on your bank. A password manager—software that stores and fills in passwords for you—makes this easier. Popular options include Bitwarden, 1Password, and Dashlane. You only have to remember one master password, and the manager remembers the rest.
Change your password if you think someone else knows it, if you used it on a website that got hacked, or if you have not changed it in over a year. Your bank's website or app will have a "Change Password" or "Security Settings" section where you can do this yourself.
Turn on two-factor authentication so login requires two steps
Two-factor authentication (often called 2FA or MFA) means you need two things to log in: your password and a second proof that you are really you. This second proof is usually a code sent to your phone by text message or generated by an app on your phone. Even if a hacker has your password, they cannot log in without that code.
To turn it on, log into your bank's website or app and look for "Security," "Account Settings," or "Two-Factor Authentication." Your bank will ask you to choose a method—usually text message (SMS), a phone call, or an authenticator app. Text message is the easiest to set up. Authenticator apps like Google Authenticator, Microsoft Authenticator, or Authy are slightly more secure because they do not rely on your phone carrier.
After you turn on two-factor authentication, every time you log in from a new device or browser, you will be asked for a code. Some banks let you mark a device as "trusted" so you do not have to enter a code every single time on that device—but do this only on devices you own and control, not on shared computers or public WiFi.
Recognize and reject phishing attempts and fake contact
Phishing is when someone pretends to be your bank and asks you to confirm your password, PIN, or account details. They do this by email, text message, phone call, or a fake website that looks like your bank's real site. Your bank will never ask you for your password or PIN by email, text, or phone—that is a rule with no exceptions.
If you get a message claiming to be from your bank and asking you to "verify your account," "confirm your identity," or "update your information," do not click any links or call any number in the message. Instead, go directly to your bank's website by typing the address into your browser (or using the official app), log in, and check your account. If there is a real problem, your bank will tell you when you log in. If you are not sure, call the number on the back of your debit card or on your bank statement—that number is definitely real.
Watch for signs of a fake website: a URL that is slightly misspelled (like mybank-secure.com instead of mybank.com), a site that does not use HTTPS (look for the padlock icon in your browser's address bar), or a site that asks for information your real bank would never ask for online.
Monitor your account regularly for unauthorized charges
Check your bank account at least once a week—log in to your app or website and look at your recent transactions. Look for charges you do not recognize, transfers you did not make, or changes to your account information like a new phone number or email address. The sooner you spot fraud, the sooner you can stop it.
If you see a charge you did not make, contact your bank immediately. Most banks have a fraud department you can reach by phone (the number is on your card or statement) or through your online banking portal. Report the charge within 24 hours if possible. Under federal law, your liability for unauthorized charges is limited—if you report it quickly, you typically owe nothing, and your bank covers the loss. If you wait longer, your liability can increase.
Set up account alerts through your bank's app or website so you get a text or email notification when certain things happen: a large purchase, a transfer out of your account, a login from a new device, or a change to your password or contact information. These alerts give you a heads-up if something unusual is happening, even if you have not checked your account yet.
Secure the devices you use to access your bank account
Your phone, computer, or tablet is the gateway to your bank account. Keep it secure by installing updates as soon as your device offers them—updates patch security holes that hackers use. Turn on automatic updates if your device allows it.
Use a strong password or biometric lock (fingerprint or face recognition) on your device so that if it is lost or stolen, someone cannot simply pick it up and open your banking app. Do not use the same PIN or pattern you use for anything else.
Avoid logging into your bank account on public WiFi networks (like at a coffee shop or airport). Public WiFi is not encrypted, so someone on the same network can see your traffic. If you must use public WiFi, use a VPN (virtual private network) like ExpressVPN, NordVPN, or ProtonVPN, which encrypts your connection. Many banks also offer their own VPN or require extra security steps when you log in from an unfamiliar location.
Do not install software or apps from unknown sources. Download your bank's app only from the official app store (Apple App Store or Google Play Store), not from a third-party website. Fake banking apps exist and are designed to steal your login details.
Know what to do if your account is compromised
If you think your account has been hacked—you see unauthorized charges, cannot log in, or notice your password has changed—call your bank immediately. Most banks have a 24-hour fraud line; the number is on your card or statement. Do this before you do anything else online.
Your bank can freeze your account, cancel your debit card, and issue a new one. They can also reverse unauthorized charges and investigate the fraud. Ask your bank to add a fraud alert or credit freeze to your account so that if a hacker tries to open new accounts in your name, the bank will contact you first.
If your email address or phone number was also compromised, change the password on your email account and contact your phone carrier to make sure no one has added a new device to your account. A hacker who controls your email or phone can reset passwords on other accounts and intercept two-factor codes.
Frequently Asked Questions
What should I do if I accidentally shared my password with someone?
Change your password immediately through your bank's website or app. If you shared it with someone you trust and they have not used it, you are probably fine. If you shared it with a stranger or someone suspicious, also call your bank's fraud line and ask them to monitor your account for unusual activity. They may recommend additional security steps.
Is it safe to use my bank's mobile app instead of the website?
Yes, the official app from your bank is usually safer than the website because it is harder for hackers to fake. Download it only from the official app store (Apple App Store or Google Play), never from a third-party source. The app also makes two-factor authentication easier because codes can be sent directly to your phone.
Can my bank hold me responsible for fraudulent charges if I did not report them right away?
It depends on how long you wait. Federal law limits your liability if you report unauthorized charges within 60 days of receiving your statement. If you report within 2 business days, you typically owe nothing. If you wait longer, your liability can increase. Report suspected fraud as soon as you notice it.
What is the difference between a password manager and writing passwords down?
A password manager encrypts your passwords and stores them securely online or on your device. Writing passwords down on paper or in a document is much riskier because anyone with physical access to your home or computer can read them. A password manager is the safer choice if you need to store multiple strong passwords.
Do I need to use an authenticator app, or is text message two-factor authentication enough?
Text message is better than nothing, but authenticator apps are slightly more secure because they do not rely on your phone carrier. Some hackers can intercept text messages through a technique called SIM swapping. If your bank offers an authenticator app option, use that. If only text message is available, that is still a strong protection.