Ransomware is malicious software designed to block access to a computer system or encrypt data until a ransom is paid. This cyberattack is one of the most prevalent and damaging threats in the digital landscape, affecting individuals, businesses, and critical infrastructure worldwide. A ransomware attack typically begins when the malware infiltrates a system through various…
Threat actors are leveraging weaponized attachments distributed via phishing emails to deliver malware likely targeting the defense sector in Russia and Belarus. According to multiple reports from Cyble and Seqrite Labs, the campaign is designed to deploy a persistent backdoor on compromised hosts that uses OpenSSH in conjunction with a customized Tor hidden service that…
Google’s artificial intelligence (AI)-powered cybersecurity agent called Big Sleep has been credited by Apple for discovering as many as five different security flaws in the WebKit component used in its Safari web browser that, if successfully exploited, could result in a browser crash or memory corruption. The list of vulnerabilities is as follows – CVE-2025-43429…
Federal prosecutors in the U.S. have accused a trio of allegedly hacking the networks of five U.S. companies with BlackCat (aka ALPHV) ransomware between May and November 2023 and extorting them. Ryan Clifford Goldberg, Kevin Tyler Martin, and an unnamed co–conspirator (aka “Co-Conspirator 1”) based in Florida, all U.S. nationals, are said to have used…
Microsoft has disclosed details of a novel backdoor dubbed SesameOp that uses OpenAI Assistants Application Programming Interface (API) for command-and-control (C2) communications. “Instead of relying on more traditional methods, the threat actor behind this backdoor abuses OpenAI as a C2 channel as a way to stealthily communicate and orchestrate malicious activities within the compromised
What is the Vulnerability? CVE-2025-59287 is a critical unauthenticated remote code execution (RCE) vulnerability affecting Windows Server Update Services (WSUS). The flaw stems from unsafe deserialization of untrusted data, allowing attackers to execute arbitrary code on vulnerable servers without authentication. A public proof-of-concept exploit has been released, and CISA has added the vulnerability to its…
Android/BankBot-YNRK is currently targeting users in Indonesia by masquerading as legitimate applications.
Researchers uncovered a new threat campaign in which attackers use RMM tools to steal physical cargo out of the supply chain.
Cybersecurity researchers have flagged a new malicious extension in the Open VSX registry that harbors a remote access trojan called SleepyDuck. According to Secure Annex’s John Tuckner, the extension in question, juan-bianco.solidity-vlang (version 0.0.7), was first published on October 31, 2025, as a completely benign library that was subsequently updated to version 0.0.8 on November…
The power grid is being attacked online and IRL. Increasingly, regulators and industry experts agree: Security teams need to focus on both cyber and physical threats, together.