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HOSTCAY BLOG

Insights on offshore hosting, privacy, security and the cloud.

Google Takes Down NetNut: What Residential Proxy Disruption Means for Infrastructure
July 3, 2026 · HOSTCAY

Google Takes Down NetNut: What Residential Proxy Disruption Means for Infrastructure

Google's coordinated takedown of NetNut's residential proxy network raises hard questions about botnet-scale infrastructure abuse and the blurring line between proxy services and illicit relay networks.

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Kubernetes Cluster Takeover via Argo CD Repo-Server
July 2, 2026 · HOSTCAY

Kubernetes Cluster Takeover via Argo CD Repo-Server

A critical unpatched flaw in Argo CD's repo-server component can grant attackers cluster-wide control. Learn the attack surface and protective measures for your infrastructure.

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AI Agents and Data Exfiltration: The MCP Tool Description Risk
July 1, 2026 · HOSTCAY

AI Agents and Data Exfiltration: The MCP Tool Description Risk

Microsoft research reveals how malicious tool descriptions can trick AI agents into leaking sensitive data. Learn the attack vector and what teams should watch for.

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Browser Extensions as Surveillance Infrastructure: What Operators Should Know
June 30, 2026 · HOSTCAY

Browser Extensions as Surveillance Infrastructure: What Operators Should Know

A fake Perplexity extension intercepted search queries and address bar input before encrypting them. Learn why extensions are a blind spot in security architecture and what operators should monitor.

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DNS Filtering, Authority, and the Limits of Voluntary Blocking
June 29, 2026 · HOSTCAY

DNS Filtering, Authority, and the Limits of Voluntary Blocking

DNS4EU's decision to reject BREIN's blocklist reveals the legal and technical tensions in voluntary DNS-level content filtering.

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Credential Theft via SMS: How Phishing Bypasses Message Apps
June 28, 2026 · HOSTCAY

Credential Theft via SMS: How Phishing Bypasses Message Apps

A sustained campaign used SMS impersonation to steal messaging credentials from government and military targets. Learn how the attack worked and what organisations should monitor.

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