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A Chinese-speaking threat actor used AI agents coordinated through the open-source Cairn platform to attempt intrusions against more than 1,200 websites, reportedly compromising sites of over 100 companies, including Deere, SharkNinja and Cummins. Researcher Snorre Fagerland of NorForge found the activity while monitoring internet-exposed…
Threat actors are abusing the open source AI platform Cairn, an agent-coordination engine usable as an autonomous penetration testing tool, to automate attacks on hundreds of websites worldwide. AI security firm Norforge found the activity after threat actors left their Cairn panels exposed, following a Gambit Security report on attackers…
FortiGuard Labs analyzed a Casbaneiro banking trojan campaign targeting users in Latin America. The campaign applies access restrictions at several stages to keep the malware away from analysis tools: the download page, the HTA downloader and Casbaneiro itself. Casbaneiro sends different types of stolen data to separate servers and uses a…
F5 Labs' October AI security roundup describes four incidents, two of which involved no attacker. Coding agents published more than 13,000 internal screenshots to public GitHub repositories (PixelLeak), and a SpaceXAI Grok Bot agent reportedly posted its owner's bank balances to a company Slack channel. The other two involved adversaries …
Central Ohio Primary Care Physicians, a large physician-owned primary care group based in Westerville, Ohio, with more than 80 locations, disclosed a breach affecting about 1.4 million current and former patients. In August 2026, an unauthorized third party used a voice phishing (vishing) attack to obtain credentials that gave access to i…
The UK government has disclosed that the April 2025 breach of the Legal Aid Agency (LAA) was larger than first reported. Around 250,000 stolen records predate 2007, with the oldest dating to 1978. The LAA had initially said the stolen data covered applications, claims and payments from 2007 onward. The Ministry of Justice (MoJ) also found…
ThreatFabric has documented Hirudo, an Android banking remote-access trojan that steals credentials and gives operators remote control of the phone. Its distinguishing feature is replacing selected genuine banking apps with modified copies that interfere with security checks from inside the app. Victims first install a lure app (Shopora, …
Researchers at Claroc disclosed GhostShares, a design flaw in Meta's Muse AI assistant that lets anyone discover shared conversations through passive DNS. Muse share links use the domain cf.metaaiusercontent.com and embed the conversation title and a random identifier in the hostname. Once a browser resolves the name, passive DNS sensors …
Germany's Alternative für Deutschland (AfD) confirmed on 19 October 2026 that a hosting provider used by the party was hacked in September and that mailboxes were copied. The anonymous site hexane.cc went online claiming to index 421,179 internal party emails. It does not publish the emails. It shows AI-generated summaries sorted into cat…
Paradigm Healthcare Services, a San Francisco-based billing processor for Medi-Cal (California's Medicaid program) under a data use agreement with the California DHCS, told the US HHS that a breach affected more than 970,000 people. The company detected unauthorized access to its local network on October 13, 2025. It determined only on Au…
This SentinelOne weekly roundup (Week 39, 2026) covers one law enforcement success and two active threat campaigns. A US court sentenced Armenian national Karen Serobovich Vardanyan ("Maneeken"/"Karl Lagerfeld"), an initial access specialist for Ryuk ransomware, to two years in prison and over $1.2 million in restitution. SentinelLABS ide…
This weekly roundup covers a cluster of breaches, critical vulnerabilities and law-enforcement actions. Bluesky confirmed more than 4,500 accounts compromised in a phishing campaign using a fake government payment offer. Zeabur will shut down after a second breach this year that exposed over 3.2 million environment variable records and da…
Straiker reports that a criminal group it tracks as AiPT-67 (operating as Tr4nsHack Team under the name Hexagon Security Labs Mexico) used a multi-agent system called CARLIY0S to coordinate attacks against more than 400 financial institutions and payment providers in Latin America. The system combined commercial AI models, Anthropic's Cla…
A threat actor using the handle ByteToBreach claims to have copied 10 databases from Ampath Laboratories, out of an environment said to contain roughly 375 databases. The claimed data includes HR and employee records, multiple patient databases, financial information and system-configuration data. The actor says the laboratory admissions …
