Insights & AI security

Articles, case studies and analysis on protecting data in the age of generative AI.

A 90-day timeline poster showing five rollout phases for AI DLP, from pilot install to org-wide Block mode, with metrics and stakeholder conversations marked on each week.Featured
Practical Operations

From Monitor to Block: A 90-Day Rollout Playbook for AI DLP

A week-by-week 90-day rollout for AI DLP in a 500-person company. Who does what, what success looks like, what to say to HR, legal, the CFO and the executive sponsor.

ZTZeuslock Team8 min
European Union and United States flags rendered as a circuit board, with a padlock at the boundary representing data sovereignty in AI DLP.
Strategy

Sovereign AI: Why European CISOs Are Rejecting US-Cloud DLP

Schrems II, FISA 702, the CLOUD Act and CNIL enforcement have changed the math. A practical guide to deciding when a US-hosted AI DLP vendor is no longer acceptable.

ZTZeuslock Team7 min
European Union flag overlaid with a digital clock and circuit pattern, illustrating the NIS2 24-hour incident reporting deadline.
Compliance

NIS2 Has Teeth: How the New Directive Changes AI Data Handling

NIS2 forces a 24-hour CSIRT warning when an employee leaks data into ChatGPT. Here is who is in scope, what counts as a significant incident, and what evidence you must produce.

ZTZeuslock Team7 min
An empty corporate training room with a presentation slide that reads 100 percent completion, illustrating the gap between awareness training and real AI security behavior
Behavioral Security

Why AI Security Training Doesn't Work (and What Actually Does)

Annual awareness modules don't change behavior at the moment someone pastes a customer list into ChatGPT. Here is what behavioral science says actually moves the needle.

ZTZeuslock Team6 min
Terminal window showing a Claude Code session reading a .env file with secret values being intercepted by Zeuslock CLI.
Developer Security

CLI-Driven AI: How Claude Code, Cursor, and Copilot CLI Expose Your Secrets

Agentic CLI tools read your files and ship them to a cloud LLM. Here are the concrete leak vectors and how to scan the read path, not just the write path.

ZTZeuslock Team7 min
Diagram of a Model Context Protocol exchange between a host application and a tool server with a DLP inspection layer wrapping the stdio pipe.
Emerging Tech

The Hidden Threat in MCP Servers: Why MCP Needs Its Own DLP Layer

Model Context Protocol is the new wire format between agents and tools. Browser DLP cannot see it. Here is what an MCP-aware DLP layer actually looks like.

ZTZeuslock Team8 min
Stylised diagram of prompt injection attack vectors flowing into an AI agent through chat, documents, tool outputs, and persistent memory
Security Research

Prompt Injection: The Top 5 Attack Patterns Hitting AI Agents in 2026

A field-level breakdown of the five prompt injection patterns we are seeing most against production AI agents in 2026, with detection signatures and concrete mitigations.

ZTZeuslock Team9 min
Side-by-side comparison of a credit card redacted with XXXX versus a format-preserving rewrite that keeps the Visa prefix and last four digits visible
Technical Deep-Dive

Format-Preserving Anonymization: Why XXXX Breaks Your AI Pipeline

Replacing 4532-1488-0343-6467 with XXXX-XXXX-XXXX-XXXX is the laziest possible redaction and it silently breaks every downstream LLM answer. Here is what to do instead.

ZTZeuslock Team8 min
A compliance officer reviewing a 12-item EU AI Act and GDPR Article 32 checklist on a dashboard showing AI interaction audit logs.
Compliance

EU AI Act + GDPR Article 32: A 12-Item Compliance Checklist

Regulators do not ask if you have AI policies. They ask for evidence those policies are followed. A 12-item checklist mapping the EU AI Act to GDPR Article 32, with the artifacts auditors actually want.

ZTZeuslock Team7 min
A close-up of a developer's terminal with a stack trace highlighted, suggesting a sensitive credential about to be pasted into an AI assistant.
Customer Stories

The Anatomy of an AI Data Leak: Three Stories from Our Telemetry

Three real, anonymized AI data leaks from our customer telemetry: AWS keys in Copilot, customer PII in ChatGPT, and proprietary code in Claude. What we saw, what fired, what changed.

ZTZeuslock Team8 min
Diagram showing a TLS 1.3 encrypted browser session to ChatGPT bypassing a corporate gateway DLP appliance.
Technical Deep-Dive

Why Email DLP Fails on ChatGPT (and what works instead)

Legacy proxy and gateway DLP cannot read encrypted browser traffic to ChatGPT, Claude or Gemini. Here is why, and the only architecture that does.

ZTZeuslock Team7 min
Dark control-room dashboard showing a fleet of unsanctioned generative AI tools accessed from corporate browsers, with sensitive-data hit-rate indicators rising.
Research

The Real Cost of Shadow AI in 2026

European CISOs underestimate shadow AI volume by 4 to 6 times. Here is what the data actually says, and the three metrics you should be measuring this quarter.

ZTZeuslock Team7 min