Latest cybersecurity reporting from selected sources.

Sygnia report details how agentic AI accelerated weeks-long attack to just 72 hours

The threat actor known as ToddyCat has been attributed to a new malware called Umbrij that's designed to gain surreptitious access to a victim's email correspondence via the Google API

A poisoned npm package infected 140+ projects with a hidden payload. This report highlights how to detect, hunt, and defend against supply chain attacks using Microsoft Defender and actionable threat intelligence. The post From package to postinstall payload: Inside the Mastra npm supply chain compromise by Sapphire Sleet appeared first on Microsoft Security Blog.

Cybersecurity company’s annual report issues warning over a “mass-marketed impersonation crisis” over attackers abusing legitimate credentials

Off-the-shelf tools helped Russian-speaking cybercrime group run riot Cybercriminals armed with off-the-shelf generative AI tools compromised more than 600 internet-exposed FortiGate firewalls across 55 countries in just over a month, according to a new incident report from AWS.…

Plus 3 new goon squads targeted critical infrastructure last year Three new threat groups began targeting critical infrastructure last year, while a well-known Beijing-backed crew - Volt Typhoon - continued to compromise cellular gateways and routers, and then break into US electric, oil, and gas companies in 2025, according to Dragos' annual threat report published on Tuesday.…

Nation State Hackers Escalating Attacks on US Defense Industrial Base, Report SaysA new report from Google Threat Intelligence Group warns that state-backed hackers are escalating attacks on the defense industrial base, shifting from classic espionage to supply-chain compromise, workforce infiltration and battlefield-adjacent cyber operations.

An eSentire report showed credential theft accounted for 74% of all observed cyber threats in 2025

Several users of the Trust Wallet Chrome extension report having their cryptocurrency wallets drained after installing a compromised extension update released on December 24, prompting an urgent response from the company and warnings to affected users. Simultaneously, BleepingComputer observed a phishing domain launched by hackers. [...]

Several users of the Trust Wallet Chrome extension report having their cryptocurrency wallets drained after installing a compromised extension update released on December 24, prompting an urgent response from the company and warnings to affected users. Simultaneously, BleepingComputer observed a phishing domain launched by hackers. [...]

The Iranian hacking group known as MuddyWater has been observed leveraging a new backdoor dubbed UDPGangster that uses the User Datagram Protocol (UDP) for command-and-control (C2) purposes

Organizations in Ukraine have been targeted by threat actors of Russian origin with an aim to siphon sensitive data and maintain persistent access to compromised networks

Cybersecurity researchers have disclosed details of a new Rust-based backdoor called ChaosBot that can allow operators to conduct reconnaissance and execute arbitrary commands on compromised hosts

Orthopedic Group, Medical Imaging Centers, Home Healthcare Provider Report BreachesSpecialty healthcare providers know what they're about when it comes to an irregular heartbeat or a wheezing lung. Cybersecurity, not so much. Hacks on specialty medical entities easily result in tens of thousands, if not hundreds of thousands, or even millions, of patient records being compromised.

Cybersecurity researchers have disclosed a stealthy new backdoor called MystRodX that comes with a variety of features to capture sensitive data from compromised systems

'Widespread Data Theft Campaign' Compromised Many Drift OAuth Tokens, Warn ExpertsThreat researchers report that "a widespread data theft campaign" traces to attackers stealing OAuth access tokens for applications integrated with Salesloft's AI chatbot Drift, then exfiltrating data. Victims include Salesforce customer Zscaler. Google Workspace instances were also breached.

As security professionals, it's easy to get caught up in a race to counter the latest advanced adversary techniques. Yet the most impactful attacks often aren't from cutting-edge exploits, but from cracked credentials and compromised accounts. Despite widespread awareness of this threat vector, Picus Security's Blue Report 2025 shows that organizations continue to struggle with preventing

Indications of compromise and Sigma rules report for your security scanners amid ongoing 'ToolShell' blitz CISA has published a malware analysis report with compromise indicators and Sigma rules for "ToolShell" attacks targeting specific Microsoft SharePoint Server versions.…

In what's the latest instance of a software supply chain attack, unknown threat actors managed to compromise Toptal's GitHub organization account and leveraged that access to publish 10 malicious packages to the npm registry

Virtualization and networking infrastructure have been targeted by a threat actor codenamed Fire Ant as part of a prolonged cyber espionage campaign