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TekStream launches Proactive Cyber Defense to counter AI-driven threats

TekStream has announced the launch of TekStream Proactive Cyber Defense, a new expert-operated security service powered by Cosmos, the company’s cyber defense intelligence platform. The launch comes as organizations face a rapidly changing threat landscape shaped by AI-accelerated attacks, autonomous adversary capabilities, growing operational complexity, and increasingly fragmented security environments. Recent developments in autonomous offensive security research, including systems such as Anthropic’s Mythos, have highlighted how quickly machine-speed attacks can identify vulnerabilities, adapt tactics, and … More → The post TekStream launches Proactive Cyber Defense to counter AI-driven threats appeared first on Help Net Security.
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SimpleHelp RMM flaw could give attackers full access to managed endpoints (CVE-2026-48558)

A critical vulnerability (CVE-2026-48558) in SimpleHelp, a popular remote monitoring and management (RMM) tool, can be exploited remotely by unauthenticated attackers to create a new “Technician” account and use it to remote into managed endpoints, execute scripts, and more. Maliciously “forged” Technician account (Source: Horizon3.ai) The vulnerability CVE-2026-48558 is an authentication bypass flaw affecting SimpleHelp deployments configured to use OpenID Connect (OIDC) authentication. “Even when the SimpleHelp server is configured to enforce MFA for technicians, … More → The post SimpleHelp RMM flaw could give attackers full access to managed endpoints (CVE-2026-48558) appeared first on Help Net Security.
http://news.poseidon-us.com/TT42rb

AppViewX extends machine identity security to ai agents and post-quantum environments

AppViewX has announced Agent Identity Security, a new product within the AppViewX platform that discovers, governs, secures, and monitors AI agents across the entire enterprise. Agent Identity Security extends AppViewX’s platform, built on a decade of machine identity and PKI expertise, into AI agent security, giving CISOs and their teams a single control plane for every machine and agent identity in their environment. The converging threats: Agentic AI and quantum computing Two megatrends are colliding … More → The post AppViewX extends machine identity security to ai agents and post-quantum environments appeared first on Help Net Security.
http://news.poseidon-us.com/TT42rR

Teleport adds LLM Proxy and Delegated Identity to secure AI agent actions and access

Teleport has announced the debut of two foundational capabilities of its Agentic Identity Framework in the public beta of Beams: LLM Proxy and Delegated Identity. These capabilities address a critical gap in how organizations deploy AI agents: the lack of identity, access control, and auditability at the two most consequential points in an agentic workflow—what the agent is instructed to do and what it is permitted to access. Much of AI innovation to date has … More → The post Teleport adds LLM Proxy and Delegated Identity to secure AI agent actions and access appeared first on Help Net Security.
http://news.poseidon-us.com/TT42r7

Radware AI Xploit Shield delivers virtual patching for newly identified application and API flaws

Radware has announced AI Xploit Shield, a new service that provides organizations with protection for their applications and APIs from exploitation of newly discovered vulnerabilities. As emerging frontier AI models like Mythos from Anthropic accelerate vulnerability discovery, organizations face a growing challenge: the volume of newly discovered vulnerabilities is accelerating while the window between vulnerability identification and exploitation is shrinking. These trends are widening the gap between discovery and remediation and making it increasingly difficult … More → The post Radware AI Xploit Shield delivers virtual patching for newly identified application and API flaws appeared first on Help Net Security.
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Cybersecurity experts blast US government for restricting Anthropic’s AI models

CISOs and prominent researchers called a recent export-control ban “dangerous.”
http://news.poseidon-us.com/TT3t3k

Cisco discloses second exploited SD-WAN vulnerability in two weeks (CVE-2026-20262)

Cisco has revealed another Catalyst SD-WAN Manager vulnerability (CVE-2026-20262) that its Product Security Incident Response Team observed being exploited by attackers. But the associated security advisory also states that “the vulnerability was found during internal security testing”, raising the question of how attackers came to exploit it before Cisco had disclosed it publicly. The vulnerability (CVE-2026-20262) Cisco Catalyst SD-WAN Manager (formerly SD-WAN vManage) is the management plane for the entire Cisco SD-WAN fabric. CVE-2026-20262 is … More → The post Cisco discloses second exploited SD-WAN vulnerability in two weeks (CVE-2026-20262) appeared first on Help Net Security.
http://news.poseidon-us.com/TT3sbZ