Hackers compromised the infrastructure of Onamae Desktop Cloud, a popular provider of VPS services in Japan, and installed malware on up to 26,739 customers' servers. The company confirmed on October 20 that an unauthorized third party installed "malicious programs" in some customer environments. After detecting the intrusion, the company says it progressively shut down customer servers beginning at 04:00 local time on October 21, 2026. “We have confirmed that unauthorized access by a third party occurred against Onamae.com Desktop Cloud and that unauthorized programs were installed in some customers’ server environments,” reads the announcement. Onamae.com, operated by GMO Internet, a member of GMO Internet Group, is one of Japan’s largest domain registrars and also provides web hosting, DNS, and other internet infrastructure services.
North Korean hackers are using a post-quantum cryptographic mechanism to secure malicious payload delivery in new operations that combine old and new malware. The campaign targets South Korean organizations through a “rather complex” infection chain. Researchers at cybersecurity company Kaspersky dubbed the operation FlashHole and attributed it to the Lazarus Group. Analysis of the malware revealed that the threat actor used the standardized ML-KEM post-quantum cryptographic mechanism to communicate with the command-and-control (C2) server for malware delivery. Kaspersky says the attackers used LPEClient malware, previously associated with Lazarus, to receive ML-KEM-1024 public keys from its C2 infrastructure and generate shared keys that allowed it to decrypt subsequently incoming payloads.
GitLab released fixes on October 21 for a flaw that lets an attacker run code on a self-managed server without logging in, and it affects every version of the software going back to 7.0, released in 2014. The fix matters even for administrators who patched nine days earlier: the October 12 update covered only versions 19.2 and later, and the new fixed versions sit one patch above it, so an
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) is warning that attackers are actively exploiting four vulnerabilities in Plex Media Server. The security issues are collectively called Plex2Shell. When chained in an exploit, an attacker can obtain the owner's admin token and execute code with elevated privileges. Plex Media Server is a popular media suite that helps users organize personal collections of movies, TV shows, music, and photos, and stream them to other devices at home or remotely over the internet. CISA has directed federal agencies to prioritize patching systems affected by Plex2Shell vulnerabilities or apply mitigations by October 23. The security issues were discovered by security researcher Zach Main, who reported them responsibly to Plex on July 27. The individual flaws are rated medium to high in severity, but the researcher assigns the full exploit chain a critical score of 9.8.
The popular LiteLLM Python package has been compromised as part of a software supply chain attack that delivered a credential stealer and a backdoor, according to reports from SafeDep, Socket, StepSecurity, and Upwind. The compromise affects LiteLLM 1.107.0, distributed through PyPI wheels and Docker images. The Python package has since been quarantined on Python Package Index (PyPI), and the
OpenAI has revealed that two artificial intelligence (AI) agents powered by GPT-6.1 Sol and GPT-6 Astra weakened misalignment monitoring while making requested software changes during two internal coding tasks. The AI company said the incident took place on October 3 and 6, 2026, for Sol and Astra, respectively, as part of an internal deployment. "A GPT-6.1 Sol agent repairing an evaluation
An investigation into a threat actor bypassing AI safety controls to coordinate credential theft, VoIP fraud planning, and database exfiltration. The post “Next Exploit Opportunities”: How a Threat Actor Used AI to Help Plan and Execute Multiple Types of Cybercrime Activities appeared first on Unit 42.
ClickFix attacks are surging as cybercriminals use fake AI installers, malicious search results, and trusted chatbot platforms to trick users into executing malware. Push Security examines how these attacks evade traditional defenses and why AI tools have become increasingly effective lures.
Cybersecurity researchers have disclosed details of a previously undocumented China-aligned threat cluster known as Bronze Sandcastle that has been observed targeting organizations in Asia and Africa since mid-2025. "The most distinctive technical marker for Bronze Sandcastle is its consistent use of Sandboxie DLL sideloading," Sophos security researcher Gabor Szappanos said in a post published
Generative AI has changed what a malicious email looks like. Messages that once gave themselves away through clumsy wording, generic pretexts, and reused templates now arrive fluent, personalized, and unique to each recipient, and the behavioral signals email filters have relied on for years are fading as a result. Proofpoint shared several examples of the shift at its Protect 2026 conference.
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