The senders are phishing for your information so they can use it to commit fraud.
How to Deal With Phishing Scams:
Delete email and text messages that ask you to confirm or provide personal information (credit card and bank account numbers, Social Security Numbers, passwords, etc.). Legitimate companies don't ask for this information via email or text. The messages may appear to be from legitimate organizations. They might threaten to close your account or take other action if you don't respond.
Don't reply, and don't click on links or call phone numbers provided in the message, either. These messages may direct you to spoof sites - sites that look real but whose purpose is to steal your information so a scammer can run up bills or commit crimes in your name.
Question area codes as they can mislead, too. Some scammers ask you to call a phone number to update your account or access a "refund". But a local area code doesn't guarantee that the caller is local.
If you're concerned about your account or need to reach an organization you do business with, call the number on your financial statements or on the back of your credit card.
Checklist for Avoiding a Phishing Attack
Use trusted security software and set it to update automatically.
Use computer security best practices for business and personal use.
Don’t email personal or financial information. Email is not a secure method of transmitting personal information.
Only provide personal or financial information through an organization’s website if you typed the web address yourself and see signals that the site is secure, like a URL that begins with https (the “s” stands for secure). Unfortunately, no indicator is foolproof; some phishers have forged security icons.
Review credit card and bank account statements as soon as you receive them to check for unauthorized charges. If your statement is late by more than a couple of days, call to confirm your billing address and account balances.
Forward phishing emails to email@example.com – and to the company, bank or organization impersonated in the email. If you receive an email that appears to be from Cardinal Bank, but you suspect it may be a phishing email, please forward it to us at firstname.lastname@example.org. You may also report phishing to email@example.com. The Anti-Phishing Working Group, a group of ISPs, security vendors, financial institutions and law enforcement agencies, uses these reports to fight phishing.
If you think you have been tricked by an email, file a report with the Federal Trade Commission at www.ftc.gov/complaint. And, visit the FTC’s Identity Theft website. Victims of phishing could become victims of identity theft; there are steps you can take to minimize your risk.
Think twice before opening attachments or clicking on links in unsolicited e-mails and text messages. These messages may install "malware" (malicious software) on your computer or cellphone.