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The U.S. Department of Justice (DoJ) on Thursday announced the arrest of a Canadian man in connection with allegedly operating a distributed denial-of-service (DDoS) botnet known as Kimwolf . In tandem, Jacob Butler (aka Dort), 23, Ottawa, Canada, has been charged with offenses related to the development and operation of the botnet. Kimwolf is assessed to be a variant of AISURU that specifically infected Android devices with an exposed Android Debug Bridge (ADB) service. "Kimwolf targeted infected devices which were traditionally 'firewalled' from the rest of the internet, such as digital photo frames and web cameras," the DoJ said . "The infected devices were enslaved by the botnet operators." "The operators then used a 'cybercrime-as-a-service' model to sell access to the infected devices to other cybercriminals. The operators and their customers forced the victim devices to participate in DDoS attacks, targeting computers and servers l...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday added two security flaws impacting Langflow and Trend Micro Apex One to its Known Exploited Vulnerabilities ( KEV ) catalog, citing evidence of active exploitation. The vulnerabilities in question are listed below - CVE-2025-34291 (CVSS score: 9.4) - An origin validation error vulnerability in Langflow that could allow an attacker to execute arbitrary code and achieve full system compromise. CVE-2026-34926 (CVSS score: 6.7) - A directory traversal vulnerability in on-premise versions of Trend Micro Apex One that could allow a pre-authenticated local attacker to modify a key table on the server to inject malicious code to deploy to agents on affected installations. In a report published in December 2025, Obsidian Security said CVE-2025-34291 exploits three combined weaknesses: overly Permissive CORS, lack of cross-site request forgery (CSRF) protection, and an endpoint that allows code execution...

Cisco has rolled out updates for a maximum-severity security flaw impacting Secure Workload that could allow an unauthenticated, remote attacker to access sensitive data. Tracked as CVE-2026-20223 (CVSS score: 10.0), the vulnerability arises from insufficient validation and authentication when accessing REST API endpoints. "An attacker could exploit this vulnerability if they are able to send a crafted API request to an affected endpoint," Cisco said . "A successful exploit could allow the attacker to read sensitive information and make configuration changes across tenant boundaries with the privileges of the Site Admin user." The shortcoming impacts Cisco Secure Workload Cluster Software on SaaS and on-prem deployments, regardless of device configuration. Cisco said there are no workarounds that address the vulnerability. The issue has been addressed in the following versions - Cisco Secure Workload Release 3.9 and earlier (Migrate to a fixed releas...

Cybersecurity researchers have disclosed details of a new Linux malware dubbed Showboat that has been put to use in a campaign targeting a telecommunications provider in the Middle East since at least mid-2022. "Showboat is a modular post-exploitation framework designed for Linux systems, capable of spawning a remote shell, transferring files, and functioning as a SOCKS5 proxy," Lumen Technologies Black Lotus Labs said in a report shared with The Hacker News. It's assessed that the malware has been employed by at least one, and possibly more, threat activity clusters affiliated with China, with correlations identified between command-and-control (C2) nodes and IP addresses geolocated to Chengdu, the capital city of the Chinese province of Sichuan. One such threat actor is Calypso (aka Bronze Medley and Red Lamassu), which is known to be active since at least September 2016, targeting state institutions in Brazil, India, Kazakhstan, Russia, Thailand, and Turkey. ...

This week starts small. A token leaks. A bad package slips in. A login trick works. An old tool shows up again. At first, it feels like the usual mess. Then you see the pattern: attackers are not always breaking in. They are using the parts we already trust. That is what makes it worrying. The danger is in normal things now - updates, apps, cloud buttons, support chats, trusted accounts. AI does not make the attacks magic. It just helps people try more things, faster. Here's what showed up this week. 47 zero-days exposed 47 0-Days Discovered in Pwn2Own Berlin 2026 The Pwn2Own Berlin 2026 hacking contest has concluded, with security researchers collecting $1,298,250 in rewards after exploiting 47 zero-day flaws in various products from Windows, Linux, VMware, and NVIDIA. DEVCORE won the event with 50.5 Master of Pwn points and $505,000 in rewards throughout the three-day contest after hacking Microsoft SharePoint, Microsoft E...

Microsoft has disclosed that a privilege escalation and a denial-of-service flaw in Defender has come under active exploitation in the wild. The former, tracked as CVE-2026-41091 , is rated 7.8 on the CVSS scoring system. Successful exploitation of the flaw could allow an attacker to gain SYSTEM privileges. "Improper link resolution before file access ('link following') in Microsoft Defender allows an authorized attacker to elevate privileges locally," Microsoft said in an advisory. The second vulnerability under exploitation is CVE-2026-45498 (CVSS score: 4.0), a denial-of-service bug impacting Defender. The two vulnerabilities have been addressed in Microsoft Defender Antimalware Platform versions 1.1.26040.8 and 4.18.26040.7, respectively. Although Microsoft has not formally confirmed, the vulnerability descriptions for CVE-2026-41091 and CVE-2026-45498 overlap with that of RedSun and UnDefend , two Defender zero-days that were disclosed by Chaotic Eclips...

Consider a cached access key on a single Windows machine. It got there the way most cached credentials do - a user logged in, and the key stored itself automatically. Standard AWS behavior. No one misconfigured anything or violated a policy. Yet that single key, which was easily accessible to a minor-league attacker, could have opened a path to some 98% of entities in the company's cloud environment - nearly every critical workload the business depended on.  This real-world exposure was caught before an attacker could use it. But the takeaway is clear: identity itself, and every permission it carries, has become the attack path. Your environment runs on identity. Active Directory, cloud identity providers, service accounts, machine identities, and AI agents - all of these carry permissions that span systems and trust boundaries. A single stolen credential hands the attacker a legitimate identity - along with every permission attached to it.  Despite this, most security pro...