Basic Security Brutalist Controls

Several readers asked for a single list pulling together the basic controls and actions behind Security Brutalism and Survivability Engineering. Here they are, organized around the Know, Harden, See, Recover model, the minimum any security program should have in place.

Start with basic hygiene, then check the most minimal approach to Security Brutalism, and finally, check:

Know

Build a working inventory of systems, identities, and data flows, pulled from tbe identity provider, cloud accounts, DNS, and expense records rather than from outdated architecture diagrams. Add a consequence map that ranks systems by what failure actually costs (existential, high recoverable, or low impact), built through short structured conversations with system and business owners. This is the foundation. You cannot harden, monitor, or recover a system you don't know exists.

Harden

Remove tools, access grants, and integrations that cannot justify their contribution to reducing attack paths, limiting damage, or speeding recovery. Then apply structural controls: no standing access to consequential systems, access scoped to specific tasks and time windows, separation of duties on irreversible actions, segmentation so compromise of one system doesn't cascade into its neighbors, and human review before high-consequence actions. This reduces susceptibility and caps damage before anything is even attacked.

See

Instrument the chokepoints on the attack paths identified during the inventory phase, not just log everything indiscriminately. Set behavioral baselines on consequential systems so deviations trigger immediate alerts, and deploy deception assets like honeytokens and canary credentials, since these produce high-confidence signals with almost no false positives. Prune alert volume so the team can actually act on what fires. Detection only earns its place if it produces a real signal before the attacker reaches the objective.

Recover

Test backup restoration, containment procedures, and kill switches under realistic conditions instead of trusting documentation. Measure time to detect, time to contain, and time to restore as actual timed exercises, run quarterly for at least one consequential system, and use the gaps found to fix ownership, escalation, and coordination problems, since those are usually the real bottlenecks, not the technology.

Cadence against entropy

Run entitlement reviews quarterly, restoration tests quarterly, and a red team exercise scoped to the consequence map annually, and evaluate every new tool or access grant against the three survivability questions before approval. Security decays the moment a system goes live, so this cadence is what keeps Know, Harden, See, and Recover accurate instead of theoretical.

How they support each other? Know feeds Harden, since you can only remove or scope access correctly once you understand what exists and what it touches. Harden feeds See, since a cleaner environment produces clearer signals instead of burying detection in noise from unused accounts and orphaned integrations. See feeds Recover, since fast detection is what keeps the recovery clock short. Recover feeds back into Know and Harden, since every test exposes gaps in ownership, access, or inventory that need to be closed.

The mission underneath all four is the same question, repeated for every consequential system: if this is compromised, how bad does it get and how long do we stay down. Every control on this list exists to make that number smaller.

How does this look in reality

For "Know":

Security engineers maintain the consequence map, ranking systems by impact if breached or lost. IT maintains identity and asset inventory, pulled from the identity provider and cloud console rather than old diagrams. This is where identity verification and access review start, since every breach story begins with a failure to know who has access to what. Network teams maintain the topology map, showing which segments talk to which. Developers maintain the data flow map, tracking where sensitive data lives and travels in their own applications.

For "Harden":

Security engineers enforce least privilege and time-boxed access, removing standing permissions on consequential systems. IT enforces multi-factor authentication, deprovisioning, and encryption of data at rest and in transit, since data is the target, and once it's gone or locked, operations stop. Network teams build segmentation and simplify architecture wherever possible, because complexity hides weakness while simplicity exposes it and allows fast containment. Developers patch dependencies aggressively and cut unused integrations and scopes, treating patching as routine maintenance rather than something to defer.

Everyone applies zero trust assumptions where no system, user, or device gets standing trust, and every access request has to prove itself, continuously, not once at onboarding.

For "See":

Security engineers run deception assets like honeytokens and canary credentials for high-confidence signals. IT and network teams instrument chokepoints identified in the topology map and keep monitoring continuous, so every action is observable and every defense is auditable, rather than relying on periodic checks. Developers add logging at the points where their applications touch sensitive data or call external systems.

Everyone agrees on baselines for their own systems so a deviation carries real meaning.

For "Recover":

Security engineers own and rehearse the incident response plan, since preparation turns panic into execution and teams that have lived through simulated breaches don't freeze when a real one happens. IT tests backup restoration on a real schedule and times it. Network teams test the kill switch and confirm segment isolation actually stops spread. Developers keep and test a rollback path for every deployment.

Running underneath all four: Continuous assessment ties the whole thing together: nothing stays secure by default, and no program remains strong without inspection, so every control above gets revisited on a fixed cadence rather than treated as done once implemented. Know tells the rest of the framework what's worth protecting, Harden shrinks the paths to it, See catches movement toward it, and Recover limits the damage when something still gets through. Zero trust and continuous assessment are what keep that whole chain from decaying the moment the systems go live.