Tag Archives: CloudFlare

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.

How Cryptocurrency Turns to Cash in Russian Banks

December 11, 2024

A financial firm registered in Canada has emerged as the payment processor for dozens of Russian cryptocurrency exchanges and websites hawking cybercrime services aimed at Russian-speaking customers, new research finds. Meanwhile, an investigation into the Vancouver street address used by this company shows it is home to dozens of foreign currency dealers, money transfer businesses, and cryptocurrency exchanges — none of which are physically located there.

Patch Tuesday, October 2023 Edition

October 10, 2023

Microsoft today issued security updates for more than 100 newly-discovered vulnerabilities in its Windows operating system and related software, including four flaws that are already being exploited. In addition, Apple recently released emergency updates to quash a pair of zero-day bugs in iOS.

How 1-Time Passcodes Became a Corporate Liability

August 30, 2022

Phishers are enjoying remarkable success using text messages to steal remote access credentials and one-time passcodes from employees at some of the world’s largest technology companies and customer support firms. A recent spate of SMS phishing attacks from one cybercriminal group has spawned a flurry of breach disclosures from affected companies, which are all struggling to combat the same lingering security threat: The ability of scammers to interact directly with employees through their mobile devices.

KrebsOnSecurity Hit By Huge New IoT Botnet “Meris”

September 10, 2021

On Thursday evening, KrebsOnSecurity was the subject of a rather massive (and mercifully brief) distributed denial-of-service (DDoS) attack. The assault came from “Meris,” the same new “Internet of Things” (IoT) botnet behind record-shattering attacks against Russian search giant Yandex this week and internet infrastructure firm Cloudflare earlier this summer.

Are the Days of “Booter” Services Numbered?

October 27, 2016

It may soon become easier for Internet service providers to anticipate and block certain types of online assaults launched by Web-based attack-for-hire services known as “booter” or “stresser” services, new research released today suggests.

Spreading the DDoS Disease and Selling the Cure

October 19, 2016

Earlier this month a hacker released the source code for Mirai, a malware strain that was used to launch a historically large 620 Gbps denial-of-service attack against this site in September. That attack came in apparent retribution for a story here which directly preceded the arrest of two Israeli men for allegedly running an online attack for hire service called vDOS. Turns out, the site where the Mirai source code was leaked had some very interesting things in common with the place vDOS called home.

Alleged vDOS Proprietors Arrested in Israel

September 10, 2016

Two young Israeli men alleged to be the co-owners of a popular online attack-for-hire service were reportedly arrested in Israel on Thursday. The pair were arrested around the same time that KrebsOnSecurity published a story naming them as the masterminds behind a service that can be hired to knock Web sites and Internet users offline with powerful blasts of junk data.