Spam from Gmail doubled last month

Logo GmailSpam originating from Google's Gmail domain doubled last month, indicating that spammers are still defeating the CAPTCHA, the distorted text used as a security test to thwart mass registration of e-mail accounts and other Web site abuse.

Gmail spam went from 1.3 percent of all spam e-mail to 2.6 percent in February, according to data released by e-mail security vendor MessageLabs on Monday.

The new statistics are another nail in the coffin for CAPTCHA, which stands for "completely automated public Turing test to tell computers and humans apart."

Google is the latest free Web mail provider to be victimized by spammers' efforts to create software to solve the codes or, at times, also employ people to solve the codes en masse.

Last month, security vendor Websense ascertained that spammers were using two hosts to crack Gmail's CAPTCHAs. The method appeared to be successful only 20 percent of the time. But if the procedure is repeated thousands of times, many new accounts can be generated and used to send spam. Most of the messages use links and images to advertise adult entertainment sites, Wood said.

While other spammy domains can simply be blocked by antispam software, businesses are reluctant to cut off the domains of free Web mail providers because of their legitimate use, he said. Spam from Web mail providers comprises 4.2 percent of all spam.

Google's CAPTCHA system is considered hard to crack, but so was Yahoo's, which is also regularly beaten. MessageLabs said 88.7 percent of the spam from free Web mail providers comes from Yahoo's domains.

Microsoft's CAPTCHA, used for registering accounts on its Windows Live Mail service, has also been cracked. Websense believes the same group of spammers are responsible for breaking both Google and Microsoft's system.

Wood said MessageLabs provides Google as well as other companies with data that helps fight spam. Google could not be reached for comment.

MessageLabs sells a security service to companies, filtering e-mail before passing it to their 17,000 customers. Per day, the company snags 2.5 billion spam messages from a total of more than 3 billion messages.

Source: InfoWorld

Tags: Gmail, Google, Yahoo

Comments
Add comment

Your name:
Sign in with:
or
Your comment:


Enter code:

E-mail (not required)
E-mail will not be disclosed to the third party


Last news

 
But anti-cheat software is apparently still an issue
 
Google Inbox was due to close down -- it was just a matter of when
 
The fine is for Google's activities in relation to AdSense between 2006 and 2016
 
The Stadia servers are capable of providing 4K, 60 frames-per-second performance
 
All EU Android users will get the option to turn down Google Search and Chrome
 
 
iPhone, iPad, and Apple Watch developers will be required to use the latest iOS and watchOS SDKs
 
The maximum number of people that you can have on a Skype video call right now is 25
The Samsung Galaxy A5 (2017) Review
The evolution of the successful smartphone, now with a waterproof body and USB Type-C
February 7, 2017 /
Samsung Galaxy TabPro S - a tablet with the Windows-keyboard
The first Windows-tablet with the 12-inch display Super AMOLED
June 7, 2016 /
Keyboards for iOS
Ten iOS keyboards review
July 18, 2015 /
Samsung E1200 Mobile Phone Review
A cheap phone with a good screen
March 8, 2015 / 4
Creative Sound Blaster Z sound card review
Good sound for those who are not satisfied with the onboard solution
September 25, 2014 / 2
Samsung Galaxy Gear: Smartwatch at High Price
The first smartwatch from Samsung - almost a smartphone with a small body
December 19, 2013 /
 
 

News Archive

 
 
SuMoTuWeThFrSa
     12
3456789
10111213141516
17181920212223
24252627282930
31




Poll

Do you use microSD card with your phone?
or leave your own version in comments (15)