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The Security Risks of Modbus and DNP3 (SCADA/ICS/OT)

The Security Risks of Modbus and DNP3 (SCADA/ICS/OT)

Most industrial control systems were built to be reliable, not secure. Modbus and DNP3 are two of the most common protocols running the machines behind power grids, water treatment plants, oil pipelines, and factory floors. They have been in service for decades. That...

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Prompt Injection in LLMs

Prompt Injection in LLMs

Most security bugs are mistakes. Someone forgot to validate an input. Someone left a bucket public. Prompt injection is not a mistake. It is a consequence of how language models work. An LLM reads instructions and data through the same channel: text. It has no...

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Zerotak Launches Managed Security Services: Continuous Defense

Zerotak Launches Managed Security Services: Continuous Defense

Running a business already takes everything you have. Chasing invoices, hiring, product, customers. Cybersecurity was never supposed to be another full-time job on top of that, yet for most companies it quietly becomes one anyway: someone has to watch the logs, patch...

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Vulnerability Assessment vs. Penetration Testing

Vulnerability Assessment vs. Penetration Testing

Every few weeks, someone asks us to run a quick pentest. What they actually need is a vulnerability assessment. Or the other way around. It's not a semantics problem. The two exercises answer different questions. They use different methods. They produce different...

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Case Study: Physical Red Team Engagement

Case Study: Physical Red Team Engagement

Most security budgets go toward firewalls, endpoint agents, and patch cycles. Then someone walks through the front door, says the right words to the right person, and ends up sitting at an employee workstation. No exploit. No malware. No stolen credentials. Just a...

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Case Study: Microsoft Custom Add-In Security Assessment

Case Study: Microsoft Custom Add-In Security Assessment

The era of cracked games taught us something: licensing was never just about payments. It was always about security. Working from a single trial account, the Zerotak team activated full enterprise functionality on a Microsoft Office Add-in without touching...

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