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Think Like Water - How Trail Building Taught Me about Cybersecurity Defense

Written by Inspectiv Team | Mar 11, 2026 5:20:28 PM

Earlier this year, I volunteered on a trail crew with The Trail Center, a local non-profit I’ve assisted for over two decades now. I was helping to repair a local trail after heavy rains. At one point the expert trail builder I was working with paused, hefted his McLeod, crouched to the ground and said: “Think like water.”

It struck me as a great analogy for what we do in cybersecurity defense. He was thinking about where will the water hit, where will it go, and where will it end up. Those same three questions map directly to how a defender should think about attackers, their routes, and the evidence they leave behind.

Where Will It Hit


On the trail you start by asking where the runoff will first land. In security, the equivalent is an honest inventory of the attack surface. That is more than a list of externally exposed URLs. It includes services one step inside the perimeter, forgotten admin consoles, feature flags, staging endpoints, and anything that creates low-friction access for an attacker. Treat low-hanging fruit as if it is already compromised; plan as though an attacker who finds an easy route will try to use it.

This first question changes the posture of testing. It prioritizes visibility and a realistic view of the perimeter so you can see the likely impact of an intrusion before it begins. Inspectiv’s platform focuses on that kind of prioritized discovery, pairing human researchers with tooling and validation so teams can find gaps other methods miss and understand the real exposure they face.

Where Will It Go


The second question is about motion. On the trail you picture how water runs off the hillside and whether it will collect and erode the trail a bend later. In security you model how an attack unfolds in time: recon, initial access, privilege escalation, lateral movement, persistence, and exfiltration. Most attackers will not waste effort on low-value targets. They focus on paths that speed them to valuable outcomes.

It is worth noting that it is pretty frequent that companies like us find indicators of compromise during pre-sales engagements, and that is not even our primary job. Those discovery moments are evidence that attackers often exploit low-friction paths precisely because defenders do not always think through sequence and timing. When testing assumes sequence, not just static vulnerability lists, it surfaces the choke points where an attacker will try to move forward, and it makes remediation far more effective.

Where Will It End Up


Finally, ask where the water will end up. On a trail, you worry that redirecting water at the top of a switchback will only cause more damage one bend later. In security you look for the downstream traces: persistence mechanisms, unusual traffic patterns, secondary artifacts, performance degradation and other indicators of compromise that show whether an attacker actually succeeded. These downstream signs are the raw material of threat hunting and incident response.

Because Inspectiv’s work includes high-quality triage and retesting, findings come with context that helps defenders anticipate what downstream traffic or artifacts should look like. That makes it easier to instrument detection points and prove whether remediation removed the problem. The point is not to push problems out of sight but to direct activity into places you can monitor and manage.

Move Fast and Partner with Customers


A final, practical observation from the trail: repairs work best when the crew moves quickly and together. In security, that means responding to risks by deploying testing services as soon as possible. Whether that's feature testing during development or operating a bug bounty program, getting results reduces risk quickly. We commonly work on the fly with customers to scope and execute tests that address immediate risks that come up from acquisitions, new regulations, or new product developments. We are partners, and we move fast to deliver validated findings and remediation guidance that engineering teams act on.

That operational speed matters because discovery without timely remediation is only a snapshot. Inspectiv emphasizes validated findings and clear remediation guidelines so teams can reduce risk with velocity rather than leaving teams to agonize over a stack of ambiguous reports. Those practical outputs are the security equivalent of carving a drainage channel in the right place so the path survives the next storm. With each validated finding, the attack surface becomes more hardened, and harder to exploit in the wild.

Practical First Assignment: Use Your Fresh Eyes


If you accept the think like water analogy, turn it into a short, practical program. This should be the first assignment for any new hire. Before they absorb company group think and long-standing assumptions, give them a focused task: inventory the perimeter, map likely attacker sequences, and trace at least one plausible downstream outcome. Fresh eyes spot the places that regular teams have normalized or overlooked.

Then combine that assignment with a focused, short-duration test. At Inspectiv we recommend a feature test. A feature test is a quick, targeted assessment of a single application feature or component that validates assumptions about its exposure and the sequence of attack that could exploit it. A feature test is narrow by design so it can be run fast, produce validated findings, and deliver remediation guidance that development teams can implement immediately. Security testing from Inspectiv is built to support that kind of rapid, pragmatic cycle: discover, validate, prescribe, and confirm.

-Rajesh F. Krishnan