Twitter implements DMARC standard to fight phishing

The new technology will help email providers detect and block emails with a spoofed twitter.com sender address

Twitter has implemented DMARC, a standard for preventing email spoofing, in order to make it harder for attackers to send phishing emails that appear to come from twitter.com addresses.

Twitter users are constantly targeted in phishing attacks that try to pass rogue emails as official communications from the company. These phishing emails direct users to fake Twitter websites in order to steal their login credentials.

"Earlier this month, we began using a new technology called DMARC that makes it extremely unlikely that most of our users will see any email pretending to be from a Twitter.com address. DMARC is a relatively new security protocol created by a group of organizations to help reduce the potential for email-based abuse," said Josh Aberant, Twitter's postmaster, Thursday in a blog post.

DMARC, short for "Domain-based Message Authentication, Reporting & Conformance," is a standard for implementing the SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail) email message validation and authentication systems.

The technologies can be used to verify that an email with a sender address of, for example, twitter.com actually came from servers authorized to send email on behalf of twitter.com. The goal of DMARC is to achieve a uniform implementation of these systems among the top email services providers and other companies that would benefit from email validation.

DMARC is supported by all four major email providers -- Google (Gmail), Microsoft (Outlook.com/Hotmail), Yahoo (Yahoo Mail) and AOL. It has also been implemented by services like Facebook, PayPal, Amazon and now Twitter.

While Twitter's support for DMARC will help email providers block messages with forged @twitter.com addresses from reaching the inboxes of many users, it won't prevent phishing emails that masquerade as Twitter communications but have non-twitter.com sender addresses. This means that users should remain vigilant and scrutinize all details of emails received from Twitter before acting on their instructions.

DMARC celebrated its one-year anniversary earlier this month, but according to DMARC.org, the industry group that oversees the standard's development and adoption, it already helps protect 60 percent of the world's email boxes from spam and phishing. More than 325 million spoofed messages were rejected in November and December 2012 because leading email providers and email senders implemented DMARC, the group said on its website.

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 social mediaMicrosoftinternetGoogleFacebooktwittersocial networkingMailscamsYahooonline safetyantispamAOLInternet-based applications and services

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

Lucian Constantin

IDG News Service
Show Comments

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Tom Pope

Dynabook Portégé X30L-G

Ultimately this laptop has achieved everything I would hope for in a laptop for work, while fitting that into a form factor and weight that is remarkable.

Tom Sellers

MSI P65

This smart laptop was enjoyable to use and great to work on – creating content was super simple.

Lolita Wang

MSI GT76

It really doesn’t get more “gaming laptop” than this.

Jack Jeffries

MSI GS75

As the Maserati or BMW of laptops, it would fit perfectly in the hands of a professional needing firepower under the hood, sophistication and class on the surface, and gaming prowess (sports mode if you will) in between.

Taylor Carr

MSI PS63

The MSI PS63 is an amazing laptop and I would definitely consider buying one in the future.

Christopher Low

Brother RJ-4230B

This small mobile printer is exactly what I need for invoicing and other jobs such as sending fellow tradesman details or step-by-step instructions that I can easily print off from my phone or the Web.

Featured Content

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?