Author Archives: BrianKrebs

As Scope of 2012 Breach Expands, LinkedIn to Again Reset Passwords for Some Users

May 18, 2016

A 2012 data breach that was thought to have exposed 6.5 million hashed passwords for LinkedIn users instead likely impacted more than 117 million accounts, the company now says. In response, the business networking giant said today that it would once again force a password reset for individual users thought to be impacted in the expanded breach.

Carding Sites Turn to the ‘Dark Cloud’

May 12, 2016

Crooks who peddle stolen credit cards on the Internet face a constant challenge: Keeping their shops online and reachable in the face of meddling from law enforcement officials, security firms, researchers and vigilantes. In this post, we’ll examine a large collection of hacked computers around the world that currently serves as a criminal cloud hosting environment for a variety of cybercrime operations, from sending spam to hosting malicious software and stolen credit card shops.

Wendy’s: Breach Affected 5% of Restaurants

May 11, 2016

Wendy’s said today that an investigation into a credit card breach at the nationwide fast-food chain uncovered malicious software on point-of-sale systems at fewer than 300 of the company’s 5,500 franchised stores. The company says the investigation into the breach is continuing, but that the malware has been removed from all affected locations.

Fraudsters Steal Tax, Salary Data From ADP

May 3, 2016

Identity thieves stole tax and salary data from payroll giant ADP by registering accounts in the names of employees at more than a dozen customer firms, KrebsOnSecurity has learned. ADP says the incidents occurred because the victim companies all mistakenly published sensitive ADP account information online that made those firms easy targets for tax fraudsters.

How the Pwnedlist Got Pwned

May 2, 2016

Last week, I learned about a vulnerability that exposed all 866 million account credentials harvested by pwnedlist.com, a service designed to help companies track public password breaches that may create security problems for their users. The vulnerability has since been fixed, but this simple security flaw may have inadvertently exacerbated countless breaches by preserving the data lost in them and then providing free access to one of the Internet’s largest collections of compromised credentials.