Silent Skimmer Gets Loud (Again)


In late May 2024, Unit 42 researchers observed an adversary compromising multiple web servers to gain access to the environment of a multinational organization headquartered in North America.

Based on overlaps in adversary infrastructure and tools, as well as tactics, techniques and procedures (TTPs), it’s possible to attribute the activity identified to the same threat actor behind the Silent Skimmer campaign. In September 2023, an online payment scraping campaign was uncovered and dubbed Silent Skimmer. Since then, there has been little to no news of Silent Skimmer – until now.

Read more…
Source: Palo Alto Unit 42


Sign up for our Newsletter


Related:

  • North Korean hackers blamed for $290M crypto theft

    April 20, 2026

    Over the weekend, hackers stole more than $290 million in cryptocurrency from Kelp DAO, a protocol that allows users to earn yields on idle crypto investments. By Monday, LayerZero, one of the projects affected by the hack, accused North Korea of carrying out the heist. The hack is now the largest crypto theft of the year ...

  • Mythos: An AI tool too powerful for public release

    April 20, 2026

    Anthropic’s most capable model to date, Claude Mythos Preview (aka Mythos), has been described as a “step change” in AI performance, especially on cybersecurity tasks. Anthropic tried to keep Mythos a secret until a few weeks ago, when a data leak revealed the existence of what the company said was its most powerful artificial intelligence to ...

  • Hackers are abusing Apple account notifications to distribute malware, steal money and data

    April 20, 2026

    Scammers have found a way to abuse Apple’s email notification system to deliver phishing messages and trick people into giving away sensitive data and system access. Recently, people started receiving emails from the email.apple.com domain, notifying them of a $899 iPhone purchase via PayPal. The email also shared a phone number for the victims to call, ...

  • NIST changes enrichment process for National Vulnerability Database due to surge in CVE submissions

    April 20, 2026

    The number of reported vulnerabilities has surged so sharply that it forced the National Institute of Standards and Technology (NIST) to change how it ‘enriches’ each entry. Until now, NIST would take a basic CVE record and add structured analysis, to make it more useful in the National Vulnerability Database (NVD). That usually includes severity scoring ...

  • UK: Military reviews Army’s use of Chinese technology to make weapons

    April 18, 2026

    The Defence Secretary has ordered an investigation after The Telegraph revealed that the British Army was using Chinese 3D printers to build weapons. Last year, it was revealed that British troops were taking the technology with them into the field and using it to make “suicide drones” for attack missions, despite national security concerns. Army officers said ...

  • Tracking Mirai Variant Nexcorium: A Vulnerability-Driven IoT Botnet Campaign

    April 17, 2026

    IoT devices are increasingly prime targets for large-scale attacks due to their widespread use, lack of patching, and often weak security settings. Threat actors continue exploiting known vulnerabilities to gain initial access and deploy malware that can persist, spread, and cause distributed denial-of-service (DDoS) attacks. FortiGuard Labs has analyzed a recent campaign exploiting CVE-2024-3721 in TBK ...