Search results for hunting news from 2025 | Breaking Cybersecurity News | The Hacker News

This week, cyber attackers are moving quickly, and businesses need to stay alert. They're finding new weaknesses in popular software and coming up with clever ways to get around security. Even one unpatched flaw could let attackers in, leading to data theft or even taking control of your systems. The clock is ticking—if defenses aren't updated regularly, it could lead to serious damage. The message is clear: don't wait for an attack to happen. Take action now to protect your business. Here's a look at some of the biggest stories in cybersecurity this week: from new flaws in WinRAR and NVIDIA Triton to advanced attack techniques you should know about. Let's get into the details. ⚡ Threat of the Week Trend Micro Warns of Actively Exploited 0-Day — Trend Micro has released temporary mitigations to address critical security flaws in on-premise versions of Apex One Management Console that it said have been exploited in the wild. The vulnerabilities (CVE-2025-54948 and CVE-2025-54987),...

In a world where threats are persistent, the modern CISO's real job isn't just to secure technology—it's to preserve institutional trust and ensure business continuity. This week, we saw a clear pattern: adversaries are targeting the complex relationships that hold businesses together, from supply chains to strategic partnerships. With new regulations and the rise of AI-driven attacks, the decisions you make now will shape your organization's resilience for years to come. This isn't just a threat roundup; it's the strategic context you need to lead effectively. Here's your full weekly recap, packed with the intelligence to keep you ahead. ⚡ Threat of the Week New HybridPetya Ransomware Bypasses UEFI Secure Boot — A copycat version of the infamous Petya/NotPetya malware dubbed HybridPetya has been spotted. But no telemetry exists to suggest HybridPetya has been deployed in the wild yet. It also differs in one key respect: It can compromise the secure boot featu...

Attackers aren't waiting for patches anymore — they are breaking in before defenses are ready. Trusted security tools are being hijacked to deliver malware. Even after a breach is detected and patched, some attackers stay hidden. This week's events show a hard truth: it's not enough to react after an attack. You have to assume that any system you trust today could fail tomorrow. In a world where AI tools can be used against you and ransomware hits faster than ever, real protection means planning for things to go wrong — and still staying in control. Check out this week's update to find important threat news, helpful webinars, useful tools, and tips you can start using right away. ⚡ Threat of the Week Windows 0-Day Exploited for Ransomware Attacks — A security affecting the Windows Common Log File System (CLFS) was exploited as a zero-day in ransomware attacks aimed at a small number of targets, Microsoft revealed. The flaw, CVE-2025-29824, is a privilege escalation vulnerabilit...

Ever wonder what happens when attackers don't break the rules—they just follow them better than we do? When systems work exactly as they're built to, but that "by design" behavior quietly opens the door to risk? This week brings stories that make you stop and rethink what's truly under control. It's not always about a broken firewall or missed patch—it's about the small choices, default settings, and shortcuts that feel harmless until they're not. The real surprise? Sometimes the threat doesn't come from outside—it's baked right into how things are set up. Dive in to see what's quietly shaping today's security challenges. ⚡ Threat of the Week FBI Warns of Scattered Spider's on Airlines — The U.S. Federal Bureau of Investigation (FBI) has warned of a new set of attacks mounted by the notorious cybercrime group Scattered Spider targeting the airline sector using sophisticated social engineering techniques to obtain initial access. Cybersecurity vendors Palo Alto Networks Unit 4...

Cybersecurity never stops—and neither do hackers. While you wrapped up last week, new attacks were already underway. From hidden software bugs to massive DDoS attacks and new ransomware tricks, this week's roundup gives you the biggest security moves to know. Whether you're protecting key systems or locking down cloud apps, these are the updates you need before making your next security decision. Take a quick look to start your week informed and one step ahead. ⚡ Threat of the Week Cisco 0-Day Flaws Under Attack — Cybersecurity agencies warned that threat actors have exploited two security flaws affecting Cisco firewalls as part of zero-day attacks to deliver previously undocumented malware families like RayInitiator and LINE VIPER. The RayInitiator and LINE VIPER malware represent a significant evolution on that used in the previous campaign, both in sophistication and its ability to evade detection. The activity involves the exploitation of CVE-2025-20362 (CVSS score: 6.5) a...

If this had been a security drill, someone would've said it went too far. But it wasn't a drill—it was real. The access? Everything looked normal. The tools? Easy to find. The detection? Came too late. This is how attacks happen now—quiet, convincing, and fast. Defenders aren't just chasing hackers anymore—they're struggling to trust what their systems are telling them. The problem isn't too few alerts. It's too many, with no clear meaning. One thing is clear: if your defense still waits for obvious signs, you're not protecting anything. You're just watching it happen. This recap highlights the moments that mattered—and why they're worth your attention. ⚡ Threat of the Week APT41 Exploits Google Calendar for Command-and-Control — The Chinese state-sponsored threat actor known as APT41 deployed a malware called TOUGHPROGRESS that uses Google Calendar for command-and-control (C2). Google said it observed the spear-phishing attacks in October 2024 and that the malware was hosted on...

Finding threat actors before they find you is key to beefing up your cyber defenses. How to do that efficiently and effectively is no small task – but with a small investment of time, you can master threat hunting and save your organization millions of dollars. Consider this staggering statistic. Cybersecurity Ventures estimates that cybercrime will take a $10.5 trillion toll on the global economy by 2025. Measuring this amount as a country, the cost of cybercrime equals the world's third-largest economy after the U.S. and China. But with effective threat hunting, you can keep bad actors from wreaking havoc on your organization. This article offers a detailed explanation of threat hunting – what it is, how to do it thoroughly and effectively, and how cyber threat intelligence (CTI) can bolster your threat-hunting efforts. What is threat hunting? Cyber threat hunting is gathering evidence that a threat is materializing. It's a continuous process that helps you find the threats that...

A newly emerged ransomware-as-a-service (RaaS) gang called Chaos is likely made up of former members of the BlackSuit crew , as the latter's dark web infrastructure has been the subject of a law enforcement seizure. Chaos, which sprang forth in February 2025, is the latest entrant in the ransomware landscape to conduct big-game hunting and double extortion attacks. "Chaos RaaS actors initiated low-effort spam flooding, escalating to voice-based social engineering for access, followed by RMM tool abuse for persistent connection and legitimate file-sharing software for data exfiltration," Cisco Talos researchers Anna Bennett, James Nutland, and Chetan Raghuprasad said . "The ransomware utilizes multi-threaded rapid selective encryption, anti-analysis techniques, and targets both local and network resources, maximizing impact while hindering detection and recovery." It's important to note here that the ransomware group is unrelated to the Chaos ransomware ...

Can a harmless click really lead to a full-blown cyberattack? Surprisingly, yes — and that's exactly what we saw in last week's activity. Hackers are getting better at hiding inside everyday actions: opening a file, running a project, or logging in like normal. No loud alerts. No obvious red flags. Just quiet entry through small gaps — like a misconfigured pipeline, a trusted browser feature, or reused login tokens. These aren't just tech issues — they're habits being exploited. Let's walk through the biggest updates from the week and what they mean for your security. ⚡ Threat of the Week Recently Patched Windows Flaw Comes Under Active Exploitation — A recently patched security flaw affecting Windows NTLM has been exploited by malicious actors to leak NTLM hashes or user passwords and infiltrate systems since March 19, 2025. The flaw, CVE-2025-24054 (CVSS score: 6.5), is a hash disclosure spoofing bug that was fixed by Microsoft last month as part of its Patch Tuesday updates...

TP-Link has released security updates to address four security flaws impacting Omada gateway devices, including two critical bugs that could result in arbitrary code execution. The vulnerabilities in question are listed below - CVE-2025-6541 (CVSS score: 8.6) - An operating system command injection vulnerability that could be exploited by an attacker who can log in to the web management interface to run arbitrary commands CVE-2025-6542 (CVSS score: 9.3) - An operating system command injection vulnerability that could be exploited by a remote unauthenticated attacker to run arbitrary commands CVE-2025-7850 (CVSS score: 9.3) - An operating system command injection vulnerability that could be exploited by an attacker in possession of an administrator password of the web portal to run arbitrary commands CVE-2025-7851 (CVSS score: 8.7) - An improper privilege management vulnerability that could be exploited by an attacker to obtain the root shell on the underlying operating sys...

The Sangoma FreePBX Security Team has issued an advisory warning about an actively exploited FreePBX zero-day vulnerability that impacts systems with an administrator control panel (ACP) exposed to the public internet. FreePBX is an open-source private branch exchange (PBX) platform widely used by businesses, call centers, and service providers to manage voice communications. It's built on top of Asterisk , an open-source communication server. The vulnerability, assigned the CVE identifier CVE-2025-57819 , carries a CVSS score of 10.0, indicating maximum severity. "Insufficiently sanitized user-supplied data allows unauthenticated access to FreePBX Administrator, leading to arbitrary database manipulation and remote code execution," the project maintainers said in an advisory. The issue impacts the following versions - FreePBX 15 prior to 15.0.66 FreePBX 16 prior to 16.0.89, and FreePBX 17 prior to 17.0.3 Sangoma said an unauthorized user began accessing mult...

Welcome to your weekly cybersecurity scoop! Ever thought about how the same AI meant to protect our hospitals could also compromise them? This week, we're breaking down the sophisticated world of AI-driven threats, key updates in regulations, and some urgent vulnerabilities in healthcare tech that need our attention. As we unpack these complex topics, we'll equip you with sharp insights to navigate these turbulent waters. Curious about the solutions? They're smarter and more unexpected than you might think. Let's dive in. ⚡ Threat of the Week Juniper Networks Routers Targeted by J-magic — A new campaign targeted enterprise-grade Juniper Networks routers between mid-2023 and mid-2024 to infect them with a backdoor dubbed J-magic when certain precise conditions. The malware is a variant of a nearly 25-year-old, publicly available backdoor referred to as cd00r, and is designed to establish a reverse shell to an attacker-controlled IP address and port. Semiconductor, energy, manuf...

Cybersecurity researchers are sounding the alert about an authentication bypass vulnerability in Fortinet FortiWeb Web Application Firewall (WAF) that could allow an attacker to take over admin accounts and completely compromise a device. "The watchTowr team is seeing active, indiscriminate in-the-wild exploitation of what appears to be a silently patched vulnerability in Fortinet's FortiWeb product," Benjamin Harris, watchTowr CEO and founder, said in a statement. "Patched in version 8.0.2 , the vulnerability allows attackers to perform actions as a privileged user - with in-the-wild exploitation focusing on adding a new administrator account as a basic persistence mechanism for the attackers." The cybersecurity company said it was able to successfully reproduce the vulnerability and create a working proof-of-concept (Poc). It has also released an artifact generator tool for the authentication bypass to help identify susceptible devices. According to d...

Cybersecurity researchers have demonstrated a new prompt injection technique called PromptFix that tricks a generative artificial intelligence (GenAI) model into carrying out intended actions by embedding the malicious instruction inside a fake CAPTCHA check on a web page. Described by Guardio Labs an "AI-era take on the ClickFix scam," the attack technique demonstrates how AI-driven browsers, such as Perplexity's Comet , that promise to automate mundane tasks like shopping for items online or handling emails on behalf of users can be deceived into interacting with phishing landing pages or fraudulent lookalike storefronts without the human user's knowledge or intervention. "With PromptFix, the approach is different: We don't try to glitch the model into obedience," Guardio researchers Nati Tal and Shaked Chen said . "Instead, we mislead it using techniques borrowed from the human social engineering playbook – appealing directly to its core des...