Phishers Use Call Forwarding to Mask Fraud

Apr 28, 2007

A phishing attack uncovered by SecureWorks tries to entice victims into forwarding their telephone calls in order to thwart out-of-band authentication by banks.

Researchers at SecureWorks have uncovered a new type of phishing attack that tries to trick victims into forwarding their telephone calls to the attacker to thwart attempts by a bank to detect fraud.

The attack, found by the Atlanta-based security vendor this week, begins with an e-mail sent from the phisher telling the potential victim their bank needs to verify their phone number immediately, and their account will be suspended if they do not confirm the number. The victim is told to confirm their number by dialing *72 and then another number, effectively forwarding their calls to the phisher's telephone.

After going through this process, the victim is asked in the e-mail to update their personal information, such as bank account and Social Security numbers. If the victim's bank calls to question an unusual transaction while the calls are being forwarded, the phisher need only confirm the illegal transaction is legitimate, SecureWorks researcher Don Jackson wrote on the company's Web site.

In an interview with eWeek, Jackson said these types of attacks are currently not widespread, but may become so in the future as more banks use out-of-band authentication - such as telephone calls - to check the validity of suspicious transactions.

He cautioned against trusting e-mails that request the recipient give up personal information.

"If they are asking you to do something, you should call your financial institution," Jackson said.

Copyright 2007 by Ziff Davis Media, Distributed by United Press International

Explore further: NFL, YouTube partner to post official clips to video site

add to favorites email to friend print save as pdf

Related Stories

After a data breach, it's consumers left holding the bag

Nov 28, 2014

Shoppers have launched into the holiday buying season and retailers are looking forward to year-end sales that make up almost 20% of their annual receipts. But as you check out at a store or click "purchase" on your online shopping cart ...

Recommended for you

China's online population nears 650 million

1 hour ago

The number of Internet users in China has risen to nearly 650 million, authorities said over the weekend, as the world's largest online population continues to rise.

China blocks VPN services that skirt online censorship

Jan 23, 2015

China is blocking VPN services that let users skirt online censorship of popular websites such as Google and Facebook amid a wider crackdown on online information, tech companies and specialists said Friday.

YouTube stars quiz Obama

Jan 23, 2015

A bubbly shopping guide, a charitable "internetainerpreneur" and a comedian who wears green lipstick and eats ladles of cinnamon quizzed US President Barack Obama Thursday in a series of unorthodox YouTube ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.