Skip to main content

Account Takeover Fraud: How It Happens and How to Protect Yourself

By: / 24 Feb 2026

As more of our banking happens online, fraudsters are finding new ways to exploit digital access. One of the fastest-growing threats today is Account Takeover Fraud — a scheme where criminals gain unauthorized access to your online or mobile banking account.

Once inside, they can transfer money, make purchases, change your contact information, or even lock you out of your own account. The good news? A few simple habits can dramatically reduce your risk.

What Is Account Takeover Fraud?

Account takeover occurs when a scammer tricks you into sharing your login credentials or a one-time security code. They often pose as a trusted source to make their request seem legitimate.

Their goal is simple: gain access before you realize what's happening.

How Scammers Trick People

Fraudsters rely on urgency, fear, and impersonation. Common tactics include:

  • Fake emails or text messages containing malicious links
  • Phone calls pretending to be your credit union or "tech support"
  • Messages claiming there's suspicious activity on your account and you must act immediately
  • Requests for a one-time Secure Access Code (SAC)

If a message pressures you to respond quickly or share sensitive information, that's a major red flag.

The Most Important Rule: Never Share Your Secure Access Code

If you receive a one-time Secure Access Code (SAC) by text, call, or email, do not share it with anyone — even if they claim to be from One Nevada.

That code is designed to verify you. Sharing it gives fraudsters direct access to your account.

Remember: One Nevada will never ask for your password, full login details, or your Secure Access Code.

How to Protect Your Account

You can strengthen your defenses with these simple steps:

  • Never share your login credentials or security codes
  • Avoid clicking suspicious links — access your account through the official website or mobile app
  • Use strong, unique passwords for your accounts
  • Enable multi-factor authentication whenever available
  • Keep your devices updated and protected with antivirus software
  • Monitor your accounts regularly for unfamiliar activity

What To Do If You Receive a Suspicious Call

If someone contacts you about your account and asks for sensitive information:

  1. Hang up immediately.
  2. Call the number on the back of your debit card to verify.
  3. Report the incident right away.

When in doubt, pause. A legitimate organization will never pressure you to share secure information on the spot.

Stay Aware. Stay Protected.

Account takeover fraud depends on catching people off guard. By staying cautious and protecting your login information, you dramatically reduce the chances of becoming a victim.

Your financial security is a partnership. Awareness is your first line of defense — and the simplest way to stay one step ahead of fraud.

Find more readings

Leaving Site

You are leaving the One Nevada Credit Union website.

We cannot control the content of other internet sites. Links from our website(s) are intended to serve as a benefit to our members and are offered on an as is basis. We are not responsible for the accuracy, security, or content of site links. We encourage our members to view privacy and security disclosures on all websites they visit.