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The China-backed threat actors have used the previously undiscovered infrastructure to obtain long-term, stealthy access to targeted organizations.

Cybersecurity never slows down. Every week brings new threats, new vulnerabilities, and new lessons for defenders. For security and IT teams, the challenge is not just keeping up with the news—it’s knowing which risks matter most right now. That’s what this digest is here for: a clear, simple briefing to help you focus where it counts. This week, one story stands out above the rest: the

Explore lessons learned from over two years of Talos IR pre-ransomware engagements, highlighting the key security measures, indicators and recommendations that have proven effective in stopping ransomware attacks before they begin.

There is a serialization of Untrusted Data vulnerability in Apache Jackrabbit Core and Apache Jackrabbit JCR Commons. This issue affects Apache Jackrabbit Core: from 1.0.0 through 2.22.1; Apache Jackrabbit JCR Commons: from 1.0.0 through 2.22.1. Deployments that accept JNDI URIs for JCR lookup from untrusted users allows them to inject malicious JNDI references, potentially leading to arbitrary code execution through deserialization of untrusted data. Users are recommended to upgrade to version 2.22.2. JCR lookup through JNDI has been disabled by default in 2.22.2. Users of this feature need to enable it explicitly and are adviced to review their use of JNDI URI for JCR lookup.

When Attackers Get Hired: Today’s New Identity Crisis What if the star engineer you just hired isn’t actually an employee, but an attacker in disguise? This isn’t phishing; it’s infiltration by onboarding. Meet “Jordan from Colorado,” who has a strong resume, convincing references, a clean background check, even a digital footprint that checks out. On day one, Jordan logs into email and attends

A list of topics we covered in the week of September 1 to September 7 of 2025

Salesloft Drift breach traced to GitHub compromise and stolen OAuth tokens, Mandiant confirms breach contained and Salesforce data targeted.

A threat actor possibly of Russian origin has been attributed to a new set of attacks targeting the energy sector in Kazakhstan. The activity, codenamed Operation BarrelFire, is tied to a new threat group tracked by Seqrite Labs as Noisy Bear. The threat actor has been active since at least April 2025. "The campaign is targeted towards employees of KazMunaiGas or KMG where the threat entity

Urgent security alert for SAP users! A critical vulnerability (CVE-2025-42957) allows attackers to take full control of your…

GhostAction supply chain attack hit 817 GitHub repositories, stealing 3,325 secrets including npm, PyPI, and DockerHub tokens.