Cyber Defense Advisors

Month: March 2025

Friday Squid Blogging: Squid Loyalty Cards

Squid is a loyalty card platform in Ireland. Blog moderation policy.  

Cyber News

Rayhunter: Device to Detect Cellular Surveillance

The EFF has created an open-source hardware tool to detect IMSI catchers: fake cell phone towers that are used for mass surveillance of an area. It runs on a $20 mobile hotspot.  

Cyber News

FIN7, FIN8, and Others Use Ragnar Loader for Persistent Access and Ransomware Operations

Threat hunters have shed light on a “sophisticated and evolving malware toolkit” called Ragnar Loader that’s used by various cybercrime and ransomware groups like Ragnar Locker (aka Monstrous Mantis), FIN7, FIN8, and Ruthless Mantis (ex-REvil). “Ragnar Loader plays a key role in keeping access to compromised systems, helping attackers stay in networks for long-term operations,” […]

Cyber News

Microsoft Warns of Malvertising Campaign Infecting Over 1 Million Devices Worldwide

Microsoft has disclosed details of a large-scale malvertising campaign that’s estimated to have impacted over one million devices globally as part of what it said is an opportunistic attack designed to steal sensitive information. The tech giant, which detected the activity in early December 2024, is tracking it under the broader umbrella Storm-0408, a moniker […]

Cyber News

Webinar: Learn How ASPM Transforms Application Security from Reactive to Proactive

Are you tired of dealing with outdated security tools that never seem to give you the full picture? You’re not alone. Many organizations struggle with piecing together scattered information, leaving your apps vulnerable to modern threats. That’s why we’re excited to introduce a smarter, unified approach: Application Security Posture Management (ASPM). ASPM brings together the […]

Cyber News

What PCI DSS v4 Really Means – Lessons from A&F Compliance Journey

Access on-demand webinar here Avoid a $100,000/month Compliance Disaster March 31, 2025: The Clock is Ticking. What if a single overlooked script could cost your business $100,000 per month in non-compliance fines? PCI DSS v4 is coming, and businesses handling payment card data must be prepared. Beyond fines, non-compliance exposes businesses to web skimming, third-party […]

Cyber News

This Malicious PyPI Package Stole Ethereum Private Keys via Polygon RPC Transactions

Cybersecurity researchers have discovered a malicious Python package on the Python Package Index (PyPI) repository that’s equipped to steal a victim’s Ethereum private keys by impersonating popular libraries. The package in question is set-utils, which has received 1,077 downloads to date. It’s no longer available for download from the official registry. “Disguised as a simple […]

Cyber News

U.S. Secret Service Seizes Russian Garantex Crypto Exchange Website

A coalition of international law enforcement agencies has seized the website associated with the cryptocurrency exchange Garantex (“garantex[.]org”), nearly three years after the service was sanctioned by the U.S. Treasury Department in April 2022. “The domain for Garantex has been seized by the United States Secret Service pursuant to a seizure warrant obtained by the […]

Cyber News

SafeWallet Confirms North Korean TraderTraitor Hackers Stole $1.5 Billion in Bybit Heist

SafeWallet has revealed that the cybersecurity incident that led to the Bybit $1.5 billion crypto heist is a “highly sophisticated, state-sponsored attack,” stating the North Korean threat actors behind the hack took steps to erase traces of the malicious activity in an effort to hamper investigation efforts. The multi-signature (multisig) platform, which has roped in […]

Cyber News