Is RealGround the same company as CyberSE.AI?

Yes. RealGround was formerly known as CyberSE.AI. The company rebranded and moved from www.cyberse.ai to www.realground.com; the old domain permanently redirects here. Same team, services, and content.

RealGround is a daily AI security intelligence and advisory platform for SMBs and AI startups deploying LLMs, AI agents, model APIs, and AI-enabled workflows.

What risks does RealGround cover?

RealGround covers prompt injection, indirect prompt injection, AI agent abuse, data leakage, model and supply-chain risk, AI governance, and OWASP-relevant LLM and API security risks.

What is agentic application security?

Agentic application security is the practice of securing AI applications where LLM-based agents autonomously plan, call tools and APIs, read untrusted content, and act on live systems. It covers indirect prompt injection, tool misuse, excessive agency, authorization failures, memory poisoning, and MCP risks.

Who provides agentic application security services?

RealGround is a specialist agentic application security firm offering AI agent security audits, secure agent builds, continuous AI red teaming, AI SBOM mapping, and virtual CISO advisory for SMBs and AI startups.

Plex Urges Immediate Updates After Patching Multiple Undisclosed Security Flaws

What Happened

Plex is urging users to update their instances to the latest version following the release of an update that patches multiple security flaws. The fixes are available in Plex Media Server 1.43.3 and Plex Desktop 1.115.0. The streaming media service did not elaborate on what those issues are, but said CVE identifiers have been requested for them. "We recommend all server owners and Desktop users

Why It Matters

Reported facts: Plex has released updates for Plex Media Server 1.43.3 and Plex Desktop 1.115.0 to patch multiple undisclosed security flaws and is urging users to update immediately; CVE identifiers have been requested, but technical details of the vulnerabilities have not been shared. Because Plex is a widely deployed software component, these undisclosed issues represent a general software supply chain risk to organizations that rely on it, including environments where AI systems may depend on Plex-integrated infrastructure or shared hosts. RealGround analysis: Organizations should treat this as a standard supply chain security event—ensure timely patching, maintain a software bill of materials (SBOM) that includes services like Plex, and review whether any AI workloads coexist on or access systems running Plex. Strengthening update processes and SBOM-driven risk tracking helps reduce downstream impact when critical but opaque vulnerabilities are disclosed and patched in third‑party software.

Healthcare Fintech SaaS SMB AI startups

RealGround Analysis

This signal maps to AI supply chain. Organizations using AI agents, LLM APIs, SaaS integrations, or sensitive data workflows should review whether this class of issue could create unauthorized tool execution, data leakage, weak approval gates, or unmanaged supply-chain exposure.

Recommended Actions

Restrict AI agent tool permissions and production write paths.
Review sensitive data access across prompts, logs, embeddings, memory, and SaaS integrations.
Add human approval workflows for high-impact or state-changing actions.
Run prompt injection and indirect prompt injection tests against affected workflows.
Document the owner, control gap, and remediation deadline for this risk class.

Source

https://thehackernews.com/2026/09/plex-urges-immediate-updates-after.html