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

 
You can use a security key instead of having a code sent to your phone
 
Adobe says that the AI can now achieve the intended result in seconds
 
A new security protocol replacing the aging WPA2
 
Download and install at your own risk, of course
 
More iPhone parts likely to be produced by Samsung
 
Starting on Friday, video views on YouTube will start to be counted by the Official Charts Company
 
LG has already announced two new V-series members in 2018
 
The method is blocked and the hack doesn’t work, it adds
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
 123456
78910111213
14151617181920
21222324252627
28293031   




Poll

Do you use microSD card with your phone?
or leave your own version in comments (11)