Security firms are reporting that hackers have stolen passwords for nearly two million accounts at Facebook, Gmail, Twitter, LinkedIn, and Yahoo.
The report calls this a "massive" data breach.
The security firm Trustwave believes it was the result of keylogging software that has been capturing passwords of people whose computers were infected.
Facebook and Twitter are now emailing members whose passwords have been compromised.
What You Can Do
Even though it sounds like a major breach, 2 million accounts is actually a small percentage of the billions of accounts with these companies.
So if you do not receive any alert from your provider, consider yourself safe. (And make sure any email is really from the company, not another scammer).
To be safe, security firms suggest you do not use the same password on multiple accounts. This way if someone gets one login, they do not get anymore.
As always, don't waste your money.
Don't Waste Your Money is a registered trademark of the EW Scripps Co.
Follow John on Twitter (@DWYM)
Copyright 2013 Scripps Media, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.
John Matarese has some great last minute Easter deals.
Don't sign up for a home warranty until you do your homework.
John Matarese has ways of avoiding soaring steak prices
John Matarese shows what's safe to shred, and which papers you should save forever.
John Matarese reports on cars that run for years and years.
A dangerous new phishing scam is targeting the sensitive information of millions of Netflix users.
John Matarese shows the latest products getting smaller at the store
John Matarese reports on the wait for ignition switch repairs
John Matarese reports on the end of full-service gasoline.
John Matarese has a preview of Apple's upcoming new iPhone.