UPDATED 22:11 EST / OCTOBER 15 2019

briansclub SECURITY

Site that sells stolen credit card data hacked by cyber vigilantes

BriansClub, an underground site that offers more than 26 million stolen credit cards for sale, has been hacked in an apparent case of cyber vigilantism.

Detailed today by security researcher Brian Krebs, the attack enabled those behind it to share the stolen card details with multiple sources who work with financial institutions to identify and monitor or reissue cards that show up for sale on underground markets.

The stolen card details also showed when they were uploaded to BriansClub. The site started with 1.7 million card records for sale before adding 2.89 million stolen cards in 2016, 4.9 million cards in 2017 and 9.2 million in 2018. Between January and August this year, August being the month the hack took place, about 7.6 million cards were added. The value of the stolen cards is estimated to be $414 million.

The owner of BriansClub, who claims to be Brian Krebs himself and even uses the security researcher’s likeness, confirmed the theft with the real Krebs, saying that the organization’s data center was hacked and that information affected by the breach has since been taken down.

“The theft ultimately has little impact on credit card owners, since all of the cards were going to be used for fraud, anyway,” Paul Bischoff, privacy advocate with research firm Comparitech Ltd. told SiliconANGLE. “It’s interesting to note that Krebs thinks the supply of stolen cards for sale on BriansClub outstrips demand. There are literally more stolen credit cards up for sale than criminals know what to do with.”

The number of stolen cards hosted by BriansClub was also noted by Deepak Patel, security evangelist for bot protection firm PerimeterX Inc., who said that the BriansClub breach is a reminder of the sheer volume of stolen card data available online. “It’s important for retailers to keep an eye out for the common signs of carding attacks such as low-cost purchases — used to verify the stolen cards — followed by large purchases using the same card,” he said.

Ilia Kolochenko, founder and chief executive of web security company ImmuniWeb, noted that the incident proves cybercriminals are not immune from being hacked themselves.

“Sadly, most of these ‘internal’ incidents further exacerbate the situation for the victims who will likely find their personally identifiable information or stolen cards being exposed even to bigger number of unauthorized third parties,” Kolochenko said. “The presumed value for law enforcement agencies, when the data about illicit traders becomes public, is likewise questionable given that most of the readers know how to use chained VPNs and proxies.”

Photo: Pxhere

Since you’re here …

Show your support for our mission with our one-click subscription to our YouTube channel (below). The more subscribers we have, the more YouTube will suggest relevant enterprise and emerging technology content to you. Thanks!

Support our mission:    >>>>>>  SUBSCRIBE NOW >>>>>>  to our YouTube channel.

… We’d also like to tell you about our mission and how you can help us fulfill it. SiliconANGLE Media Inc.’s business model is based on the intrinsic value of the content, not advertising. Unlike many online publications, we don’t have a paywall or run banner advertising, because we want to keep our journalism open, without influence or the need to chase traffic.The journalism, reporting and commentary on SiliconANGLE — along with live, unscripted video from our Silicon Valley studio and globe-trotting video teams at theCUBE — take a lot of hard work, time and money. Keeping the quality high requires the support of sponsors who are aligned with our vision of ad-free journalism content.

If you like the reporting, video interviews and other ad-free content here, please take a moment to check out a sample of the video content supported by our sponsors, tweet your support, and keep coming back to SiliconANGLE.