Author Archives: BrianKrebs

Who’s Behind the Seized Forums ‘Cracked’ & ‘Nulled’?

February 4, 2025

The FBI joined authorities across Europe last week in seizing domain names for Cracked and Nulled, English-language cybercrime forums with millions of users that trafficked in stolen data, hacking tools and malware. An investigation into the history of these communities shows their apparent co-founders quite openly operate an Internet service provider and a pair of e-commerce platforms catering to buyers and sellers on both forums.

FBI, Dutch Police Disrupt ‘Manipulaters’ Phishing Gang

January 31, 2025

The FBI and authorities in The Netherlands this week seized a number of servers and domains for a hugely popular spam and malware dissemination service operating out of Pakistan. The proprietors of the service, who use the collective nickname “The Manipulaters,” have been the subject of three stories published here since 2015. The FBI said the main clientele are organized crime groups that try to trick victim companies into making payments to a third party.

Infrastructure Laundering: Blending in with the Cloud

January 30, 2025

In an effort to blend in and make their malicious traffic tougher to block, hosting firms catering to cybercriminals in China and Russia increasingly are funneling their operations through major U.S. cloud providers. Research published this week on one such outfit — a sprawling network tied to Chinese organized crime gangs and aptly named “Funnull” — highlights a persistent whac-a-mole problem facing cloud services.

A Tumultuous Week for Federal Cybersecurity Efforts

January 27, 2025

President Trump last week issued a flurry of executive orders that upended a number of government initiatives focused on improving the nation’s cybersecurity posture. The president fired all advisors from the Department of Homeland Security’s Cyber Safety Review Board, called for the creation of a strategic cryptocurrency reserve, and voided a Biden administration action that sought to reduce the risks that artificial intelligence poses to consumers, workers and national security.

MasterCard DNS Error Went Unnoticed for Years

January 22, 2025

The payment card giant MasterCard just fixed a glaring error in its domain name server settings that could have allowed anyone to intercept or divert Internet traffic for the company by registering an unused domain name. The misconfiguration persisted for nearly five years until a security researcher spent $300 to register the domain and prevent it from being grabbed by cybercriminals.

Chinese Innovations Spawn Wave of Toll Phishing Via SMS

January 16, 2025

Residents across the United States are being inundated with text messages purporting to come from toll road operators like E-ZPass, warning that recipients face fines if a delinquent toll fee remains unpaid. Researchers say the surge in SMS spam coincides with new features added to a popular commercial phishing kit sold in China that makes it simple to set up convincing lures spoofing toll road operators in multiple U.S. states.

Microsoft: Happy 2025. Here’s 161 Security Updates

January 14, 2025

Microsoft today unleashed updates to plug a whopping 161 security vulnerabilities in Windows and related software, including three “zero-day” weaknesses that are already under active attack. Redmond’s inaugural Patch Tuesday of 2025 bundles more fixes than the company has shipped in one go since 2017.

A Day in the Life of a Prolific Voice Phishing Crew

January 7, 2025

Besieged by scammers seeking to phish user accounts over the telephone, Apple and Google frequently caution that they will never reach out unbidden to users this way. However, new details about the internal operations of a prolific voice phishing gang show the group routinely abuses legitimate services at Apple and Google to force a variety of outbound communications to their users, including emails, automated phone calls and system-level messages sent to all signed-in devices.

U.S. Army Soldier Arrested in AT&T, Verizon Extortions

December 30, 2024

Federal authorities have arrested and indicted a 20-year-old U.S. Army soldier on suspicion of being Kiberphant0m, a cybercriminal who has been selling and leaking sensitive customer call records stolen earlier this year from AT&T and Verizon. As first reported by KrebsOnSecurity last month, the accused is a communications specialist who was recently stationed in South Korea.

Happy 15th Anniversary, KrebsOnSecurity!

December 29, 2024

KrebsOnSecurity.com turns 15 years old today! Maybe it’s indelicate to celebrate the birthday of a cybercrime blog that mostly publishes bad news, but happily many of 2024’s most engrossing security stories were about bad things happening to bad guys. It’s also an occasion to note that despite my publishing fewer stories than ever this past year, we somehow managed to attract near record levels of readership (thank you!).