Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

Agentic AI Ransomware: What You Need to Know

Brace yourself for agentic AI ransomware. It's a terrifying fusion of cutting-edge tech and malicious intent that's set to redefine cyber threats as we know them. Unlike traditional ransomware, which follows pre-programmed rules, agentic AI ransomware can adapt its behavior in real-time based on its environment and the defenses it encounters.

AI Sidebar Spoofing Attack: SquareX Uncovers Malicious Extensions that Impersonate AI Browser Sidebars

SquareX released critical research exposing a new class of attack targeting AI browsers. The AI Sidebar Spoofing attack leverages malicious browser extensions to impersonate trusted AI sidebar interfaces, which is used to trick users into executing dangerous commands that can lead to credential theft, device hijacking, and password exfiltration.

Dual-Platform Backdoor from a South Asian Threat Group: StealthServer

In my ongoing monitoring of cyber threats in South Asia, I’ve encountered a series of advanced persistent threat (APT) activities. This region has long been a hotspot for sophisticated cyberattacks, with various groups ramping up their operations in terms of frequency and technical complexity. Starting from early July, I’ve captured multiple new malware samples targeting both Windows and Linux platforms.

Why Infostealer Malware Demands a New Defense Strategy

Modern breaches rarely begin with a brute-force attack on a firewall, they now start with a user login. Valid account credentials are now a top initial access vector, responsible for 30% of all intrusions. In this post, we address a common misconception surrounding the inforstealer malware that may be putting you at risk of a data breach.

Minimizing liability is not the same as security: Lessons from Recent Airport Cyber Disruptions

Blog post updated for clarity. In late September 2025, several European airports reported significant delays and flight cancellations due to disruptions with their check-in and passenger systems. As a global leader in aviation technology and the backbone of passenger travel, protection of systems and customer operations is paramount for Collins Aerospace. Nonetheless, the vendor of the vMUSE check-in system had been hit by a ransomware attack.

Resilience After the Breach: 6 Cyber Incident Response Best Practices

In its 2025 State of the Underground report, Bitsight TRACE found that ransomware activity continued to escalate in 2024, with a 25% increase in unique victims listed on leak sites and a 53% increase in the number of ransomware group-operated leak sites. The report also observed a 43% increase in data breaches shared on underground forums, with nearly one in five victims based in the United States. These findings highlight a continued upward trend in cyberattack activity.

Public Sector Ransomware Attacks Relentlessly Continue

In 2025, 36 years after the first ransomware attack was recorded, actors continue to zero in on the public sector, and there is no evidence they will slow down any time soon. In fact, our numbers suggest that ransomware attacks against government organizations are ramping up, causing crippling service outages, massive data loss, reputational damage, public distrust, and financial harm.

The Next-Level Threat: Defending Against BrickStorm and the 393-Day Dwell Time

A new threat campaign, codenamed BrickStorm and attributed to a China nexus group tracked as UNC5221, has security researchers sounding the alarm. This is a highly sophisticated espionage operation, and its most staggering feature is the adversary’s patience. The astonishing average time they remain inside a victim’s network before being detected is well over a year—393 days to be exact.

Brazilian Caminho Loader Employs LSB Steganography and Fileless Execution to Deliver Multiple Malware Families Across South America, Africa, and Eastern Europe

Arctic Wolf Labs has identified and analyzed a new malware loader we’re calling Caminho, a Brazilian-origin Loader-as-a-Service (LaaS) operation employing Least Significant Bit (LSB) steganography to conceal.NET payloads within image files hosted on legitimate platforms.