Yahoo resets passwords after Mail attack

Yahoo suspects usernames and passwords were stolen from an unidentified third-party database

Marissa Mayer speaking at CES

Marissa Mayer speaking at CES

Yahoo has been resetting email accounts that were targeted in an attack apparently aimed at collecting information from people's recently sent messages, the company said.

The list of usernames and passwords used for the attack was likely collected when another company's database was breached, Jay Rossiter, a Yahoo senior vice president, said in a blog post. He didn't name the third party or say how many accounts were affected.

"We are working with federal law enforcement to find and prosecute the perpetrators responsible for this attack," Rossiter wrote.

The hackers used a malicious software program to access Mail accounts with the stolen usernames and passwords, he wrote.

Free email services with large user bases from companies like Yahoo, Google and Microsoft are a rich target for hackers, who use compromised accounts to deliver spam, launch attacks on other users and collect information.

Rossiter didn't say when the attack occurred, and a Yahoo spokeswoman said the company could not share more information while the investigation is ongoing.

Yahoo said it was resetting passwords on the affected accounts and using second sign-in verification to let users resecure their accounts. The feature sends a one-time passcode to a user's phone that must be entered into a Web-based form to access the account.

Yahoo has also "implemented additional measures to block attacks against Yahoo's systems," Rossiter wrote.

He advised that users change their passwords regularly and not reuse the same password for their Yahoo Mail on other Web services.

"We regret this has happened and want to assure our users that we take the security of their data very seriously," Rossiter wrote.

Send news tips and comments to jeremy_kirk@idg.com. Follow me on Twitter: @jeremy_kirk

Join the newsletter!

Or

Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.

Tags Yahoo

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Jeremy Kirk

IDG News Service
Show Comments

Cool Tech

Toys for Boys

Family Friendly

Stocking Stuffer

SmartLens - Clip on Phone Camera Lens Set of 3

Learn more >

Christmas Gift Guide

Click for more ›

Brand Post

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Aysha Strobbe

Microsoft Office 365/HP Spectre x360

Microsoft Office continues to make a student’s life that little bit easier by offering reliable, easy to use, time-saving functionality, while continuing to develop new features that further enhance what is already a formidable collection of applications

Michael Hargreaves

Microsoft Office 365/Dell XPS 15 2-in-1

I’d recommend a Dell XPS 15 2-in-1 and the new Windows 10 to anyone who needs to get serious work done (before you kick back on your couch with your favourite Netflix show.)

Maryellen Rose George

Brother PT-P750W

It’s useful for office tasks as well as pragmatic labelling of equipment and storage – just don’t get too excited and label everything in sight!

Cathy Giles

Brother MFC-L8900CDW

The Brother MFC-L8900CDW is an absolute stand out. I struggle to fault it.

Luke Hill

MSI GT75 TITAN

I need power and lots of it. As a Front End Web developer anything less just won’t cut it which is why the MSI GT75 is an outstanding laptop for me. It’s a sleek and futuristic looking, high quality, beast that has a touch of sci-fi flare about it.

Emily Tyson

MSI GE63 Raider

If you’re looking to invest in your next work horse laptop for work or home use, you can’t go wrong with the MSI GE63.

Featured Content

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?