If you recently got a text from an unknown number warning you about unpaid SunPass tolls, officials want you to know it was probably a scam.

“Smishing,” or SMS phishing, is when fraudsters try to obtain your personal information through a text message. According to the Federal Trade Commission, the text might include a dollar amount for how much you supposedly owe, as well as a link.

Clicking the link will take you to a page to enter your bank account or credit card information.

“SunPass wants to remind customers to be careful of text messages or other communications that demand immediate payment for unpaid toll balances,“ the Florida Department of Transportation, which runs the electronic toll collection system, wrote in an advisory on its website. “These messages often pressure customers to make a quick payment to avoid late fees and include a link to a fake website to collect personal information.”

If you receive one of the messages, the transportation department says not to click the link. Instead, log in to your account on sunpass.com to check your balance. SunPass only contacts customers through customerservice@sunpass.com, noreply@sunpass.com or via text at 786727.

To recognize a smishing scam, look out for the following:

• Unknown or hidden numbers. Sometimes scammers are hiding their identity, but they can also spoof a local number to make it look authentic.
• False claims about problems with your payment information.
• Fake invoices with instructions to contact them.
• Requests for personal information, such as your name, address, Social Security number or credit card details.
• Alarming messages that create a sense of panic.
• “The common thread in these scams is that they often demand immediate payment,” the transportation department’s advisory said. “By forcing you to act quickly, you are less likely to question the request. Don’t be rushed.”

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If you receive a suspected smishing message, here’s what to do:

• Never click links or call numbers you don’t recognize.
• Do not respond to messages, even if they ask you to “text STOP” to end messages.
• Report the message to the Internet Crime Complaint Center at ic3.gov. You can also use your phone’s “report junk” feature or forward the message to 7726 (SPAM).
• Delete all suspicious texts.
• Keep your phone’s operating system and security apps updated.
• To help cut down on scam messages and calls, the Federal Trade Commission recommends using filters or call-blocking apps. Many email providers have spam filters turned on by default, but if unwanted messages get into your inbox, mark them as spam or junk.

You can also unsubscribe from unwanted emails. Doing so reduces the risk of clicking links that can lead to phishing attacks, according to the FTC.