Attacks Aimed at Disrupting the Trickbot Botnet

Over the past 10 days, someone has been launching a series of coordinated attacks designed to disrupt Trickbot, an enormous collection of more than two million malware-infected Windows PCs that are constantly being harvested for financial data and are often used as the entry point for deploying ransomware within compromised organizations. Continue reading Attacks Aimed at Disrupting the Trickbot Botnet

Sendgrid Under Siege from Hacked Accounts

Email service provider Sendgrid is grappling with an unusually large number of customer accounts whose passwords have been cracked, sold to spammers, and abused for sending phishing and email malware attacks. Sendgrid’s parent company Twilio says it is working on a plan to require multi-factor authentication for all of its customers, but that solution may not come fast enough for organizations having trouble dealing with the fallout in the meantime. Continue reading Sendgrid Under Siege from Hacked Accounts

FBI, CISA Echo Warnings on ‘Vishing’ Threat

The Federal Bureau of Investigation (FBI) and the Cybersecurity and Infrastructure Security Agency (CISA) on Thursday issued a joint alert to warn about the growing threat from voice phishing or “vishing” attacks targeting companies. The advisory came less than 24 hours after KrebsOnSecurity published an in-depth look at a crime group offering a service that people can hire to steal VPN credentials and other sensitive data from employees working remotely during the Coronavirus pandemic. Continue reading FBI, CISA Echo Warnings on ‘Vishing’ Threat

FBI, CISA Echo Warnings on ‘Vishing’ Threat

The Federal Bureau of Investigation (FBI) and the Cybersecurity and Infrastructure Security Agency (CISA) on Thursday issued a joint alert to warn about the growing threat from voice phishing or “vishing” attacks targeting companies. The advisory came less than 24 hours after KrebsOnSecurity published an in-depth look at a crime group offering a service that people can hire to steal VPN credentials and other sensitive data from employees working remotely during the Coronavirus pandemic. Continue reading FBI, CISA Echo Warnings on ‘Vishing’ Threat

Voice Phishers Targeting Corporate VPNs

The COVID-19 epidemic has brought a wave of email phishing attacks that try to trick work-at-home employees into giving away credentials needed to remotely access their employers’ networks. But one increasingly brazen group of crooks is taking your standard phishing attack to the next level, marketing a voice phishing service that uses a combination of one-on-one phone calls and custom phishing sites to steal VPN credentials from employees. Continue reading Voice Phishers Targeting Corporate VPNs

Hacked Data Broker Accounts Fueled Phony COVID Loans, Unemployment Claims

A group of thieves thought to be responsible for collecting millions in fraudulent small business loans and unemployment insurance benefits from COVID-19 economic relief efforts gathered personal data on people and businesses they were impersonating by leveraging several compromised accounts at a little-known U.S. consumer data broker, KrebsOnSecurity has learned. Continue reading Hacked Data Broker Accounts Fueled Phony COVID Loans, Unemployment Claims

Is Your Chip Card Secure? Much Depends on Where You Bank

Chip-based credit and debit cards are designed to make it infeasible for skimming devices or malware to clone your card when you pay for something by dipping the chip instead of swiping the stripe. But a recent series of malware attacks on U.S.-based merchants suggest thieves are exploiting weaknesses in how certain financial institutions have implemented the technology to sidestep key chip card security features and effectively create usable, counterfeit cards. Continue reading Is Your Chip Card Secure? Much Depends on Where You Bank

Business ID Theft Soars Amid COVID Closures

Identity thieves who specialize in running up unauthorized lines of credit in the names of small businesses are having a field day with all of the closures and economic uncertainty wrought by the COVID-19 pandemic, KrebsOnSecurity has learned. This story is about the victims of a particularly aggressive business ID theft ring that’s spent years targeting small businesses across the country and is now pivoting toward using that access for pandemic assistance loans and unemployment benefits. Continue reading Business ID Theft Soars Amid COVID Closures

NY Charges First American Financial for Massive Data Leak

In May 2019, KrebsOnSecurity broke the news that the website of mortgage title insurance giant First American Financial Corp. had exposed approximately 885 million records related to mortgage deals going back to 2003. On Wednesday, regulators in New York announced that First American was the target of their first ever cybersecurity enforcement action in connection with the incident, charges that could bring steep financial penalties. Continue reading NY Charges First American Financial for Massive Data Leak

Breached Data Indexer ‘Data Viper’ Hacked

Data Viper, a security startup that provides access to some 15 billion usernames, passwords and other information exposed in more than 8,000 website breaches, has itself been hacked and its user database posted online. The hackers also claim they are selling on the dark web roughly 2 billion records Data Viper collated from numerous breaches and data leaks, including data from several companies that likely either do not know they have been hacked or have not yet publicly disclosed an intrusion.

The apparent breach at St. Louis, Mo. based Data Viper offers a cautionary and twisted tale of what can happen when security researchers seeking to gather intelligence about illegal activity online get too close to their prey or lose sight of their purported mission. The incident also highlights the often murky area between what’s legal and ethical in combating cybercrime. Continue reading Breached Data Indexer ‘Data Viper’ Hacked