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HIGH phishing Last reported: Sep 26, 2026 Share

Your inbox is suddenly flooded with spam — while scammers quietly charge your credit card

Scammers with your stolen card number make unauthorized purchases, then sign your email up to thousands of mailing lists. Your bank's fraud alert gets buried in the spam flood — and you miss it while deleting in bulk.

Also known as: email bomb credit card scam, subscription bombing fraud, inbox flood card fraud, email flood CC scam, spam bomb card fraud

What to do right now

  1. 1 Never delete your inbox in bulk during or after a sudden spam surge — scroll through or use your card provider's mobile app or online portal to check recent transactions directly
  2. 2 Sign up for real-time text (SMS) or push notification alerts from your bank in addition to email — text alerts are much harder for scammers to bury
  3. 3 If you discover an unauthorized charge, call your card issuer immediately using the number on the back of your card and dispute it as fraud — acting within the first few hours gives you the best chance of reversal
  4. 4 Mark the subscription flood emails as spam rather than deleting them, so your email provider's filter learns to block future waves
  5. 5 Check whether your email address or card info appears in any known data breach at haveibeenpwned.com — the scammer likely obtained your info there
  6. 6 Consider a free credit freeze at Equifax, Experian, and TransUnion to prevent new accounts from being opened in your name
  7. 7 Report to the FTC at https://reportfraud.ftc.gov and the FBI's IC3 at https://www.ic3.gov.

Red flags

  • ⚠ You suddenly receive hundreds of newsletter and subscription confirmation emails in minutes from services you never signed up for
  • ⚠ The spam surge happens at exactly the same time as unexplained charges appearing on your credit or debit card
  • ⚠ Your bank or card issuer's fraud alert arrives during the flood but is easy to miss while bulk-deleting
  • ⚠ The charge is from an unfamiliar retailer or service you've never used, often a large-ticket electronics or home goods purchase
  • ⚠ When you search your inbox after the fact, you find a fraud alert buried under the subscription emails timestamped the same hour

Sources

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