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Cyber security news, as it breaks.
Updated 109 stories in 24 hours
Malware & Exploits
Malware, exploited flaws, phishing and botnets, from the researchers who found them.
128stories this week
29today
the last seven days
Most fromThe Hacker News, BleepingComputer, SecurityWeek, Help Net Security
In the news hereMicrosoft8Fortinet6GitHub5npm and PyPI4Lazarus2APT411APT29 (Cozy Bear)1Lumma Stealer1
MyCyberWay trainingEvery story here started as an alert. Learn to triage them.See Blue Team Analyst
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Quoth the LLM, ‘More and more’
The Register
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Read how How Microsoft Security’s FORGE Lab is scaling vulnerability research from Windows to the Linux kernel.
Microsoft
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A critical vulnerability in LMCache, open-source software that speeds up large language model (LLM) servers such as vLLM, lets an attacker run code on the cache server without logging in, and no fixed version is available. The flaw is in LMCache’s multiprocess mode, where the cache runs as a standalone server that LLM workers reach…
The Hacker News
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Cybersecurity researchers are calling attention to a new malware family that has been observed targeting exposed artificial intelligence (AI) and large language model (LLM) infrastructure with an aim to deploy cryptocurrency miners and further expand the scale of the botnet. The financially motivated campaign, dubbed Canto Incognito, has been found to install cryptocurrency miners, including…
The Hacker News
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A cryptomining campaign targeting exposed AI services is using PoeLLM malware to turn compromised servers into scanners and exploit launchpads.
BleepingComputer
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More than 3,400 servers have been compromised by malware that hides its infrastructure coordinates in a poem.
CyberScoop
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On October 5th, Atlassian published patches&#;x26;#;xc2;&#;x26;#;xa0;for multiple products to fix an “Arbitrary File Access” vulnerability &#;x26;#;x5b;CVE-2026-21589&#;x26;#;x5d;. An attacker can read arbitrary files in the web application&#;x26;#;39;s directory, potentially exposing sensitive information such as configuration files.
SANS Internet Storm Center
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One day after Atlassian released patches fixing a critical arbitrary file access vulnerability (CVE-2026-21589) in its self-managed Data Center products, and a few hours after watchTowr researchers published a technical rundown of the flaw, attackers have been spotted attempting to exploit it. CVE-2026-21589 PoC in action (Source: watchTowr) “Exploitation attempts have now started to hit…
Help Net Security
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FBI and Secret Service warn FortiBleed, a credential-harvesting campaign against Fortinet firewalls, has compromised 86,644 devices and is locking out admins. The FBI and the U.S. Secret Service issued a joint advisory about FortiBleed, and the headline number alone is worth sitting with: more than 86,644 compromised Fortinet FortiGate devices across 194 countries, according to…
Security Affairs
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Over 100 hacked websites used fake Cloudflare checks to trick visitors into installing LunexStealer through ClickFix commands. The lure is the now-familiar ClickFix technique, dressed up as Cloudflare’s standard bot check. The fake page asks you to run a command, supposedly to confirm you’re not a bot, and that command quietly downloads and installs an…
Security Affairs
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A critical vulnerability (CVE-2026-21589) affecting multiple Atlassian product families, including Jira, Confluence, and Bitbucket, is being exploited in attacks that do not require authentication.
BleepingComputer
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Threat actors have begun to exploit a newly disclosed critical security flaw impacting Atlassian Data Center products that could allow access to sensitive files under certain conditions. The arbitrary file access flaw, tracked as CVE-2026-21589 (CVSS score: 9.3) affects multiple products, including Bitbucket Data Center, Confluence Data Center, Jira Service Management Data Center, Jira Software…
The Hacker News
