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Topic · 27 posts

Security

Cache poisoning, the five-stage anti-poisoning pipeline, PII handling, tenant isolation, and the trust model behind a safe LLM cache.

securityJul 18, 2026· 5m

Prompt-injection and jailbreak detection at the cache layer

Attackers disguise injections with odd spacing and character swaps. CGUARD normalizes the disguise first, then scans, so the trick that beats a naive filter doesn't beat this.

securityJul 11, 2026· 6m

Why self-hosted, zero-egress AI infra is winning

Why self-hosted, zero-egress AI infra is winning. A practical, Crowkis-grounded take, no hype, just what actually moves cost, latency, and safety.

securityJul 9, 2026· 5m

Anti-poisoning write pipeline: how it works and when to use it

Anti-poisoning write pipeline, scores every write through five stages (coherence, content policy, source trust, tenant isolation, neighbourhood anomaly) before it can ever be served. Here's how Crowkis does it and why it matters for cost and safety.

securityJul 7, 2026· 6m

Multi-tenant AI infrastructure without leaks

Multi-tenant AI infrastructure without leaks. A practical, Crowkis-grounded take, no hype, just what actually moves cost, latency, and safety.

securityJul 6, 2026· 6m

PII and GDPR in your LLM cache

PII and GDPR in your LLM cache. A practical, Crowkis-grounded take, no hype, just what actually moves cost, latency, and safety.

securityJul 5, 2026· 6m

Prompt injection: detection at the infrastructure layer

Prompt injection: detection at the infrastructure layer. A practical, Crowkis-grounded take, no hype, just what actually moves cost, latency, and safety.

securityJul 3, 2026· 6m

The five gates every write passes before it can poison your cache

In any shared cache, one crafted answer could get served to thousands. So every write runs a five-stage gauntlet before it's ever eligible to be reused.

securityJul 2, 2026· 5m

Input guardrails (CGUARD): how it works and when to use it

Input guardrails (CGUARD), scans prompts for injection and jailbreaks after normalizing leetspeak, whitespace, and zero-width evasion, model-free and stateless. Here's how Crowkis does it and why it matters for cost and safety.

securityJul 1, 2026· 5m

Output guardrails (COUTCHECK): how it works and when to use it

Output guardrails (COUTCHECK), scans responses for PII, toxicity, and JSON validity before they ship, so the model's output is checked at the trust boundary. Here's how Crowkis does it and why it matters for cost and safety.

securityJun 27, 2026· 5m

Tenant isolation is a feature you test, not a checkbox you claim

Every multi-tenant product says its tenants are isolated. The ones you can trust are the ones that try to break it on purpose. Here's how we prove no tenant can read another's data.

securityJun 26, 2026· 6m

Cache poisoning is the whole problem with semantic caches

Cache poisoning is the whole problem with semantic caches. A practical, Crowkis-grounded take, no hype, just what actually moves cost, latency, and safety.

securityJun 16, 2026· 5m

Negative / anti-hallucination cache (CFLAG): how it works and when to use it

Negative / anti-hallucination cache (CFLAG), records known-bad answers so every paraphrase of the question that would reproduce a hallucination is caught. Here's how Crowkis does it and why it matters for cost and safety.

securityJun 11, 2026· 5m

PII scrubbing and right-to-erasure (CPII): how it works and when to use it

PII scrubbing and right-to-erasure (CPII), reports what personal data is cached and executes right-to-erasure on request, so compliance is a command. Here's how Crowkis does it and why it matters for cost and safety.

securityJun 10, 2026· 5m

Multi-tenant isolation: how it works and when to use it

Multi-tenant isolation, namespaces keys per tenant and tags every entry, so one customer's answer can never be served to another. Here's how Crowkis does it and why it matters for cost and safety.

securityJun 6, 2026· 3m

Prompt injection meets your cache: the attack nobody threat-modeled

Injected instructions in one response become served truth for every similar query, unless the cache can smell an answer that doesn't answer.

securityJun 3, 2026· 3m

The supply-chain argument, made carefully

After the 2026 gateway compromise, 'how many packages are in your hot path?' became a real procurement question. Our answer is a number: zero.

securityMay 31, 2026· 3m

Tenant isolation as physics, not policy

A WHERE clause is a promise; a namespace is a wall. How Crowkis makes cross-tenant leakage structurally impossible rather than procedurally unlikely.

securityMay 28, 2026· 3m

PII in a cache: scrub, isolate, erase, prove

Users put personal data in prompts whether you like it or not. The cache's job is a full lifecycle: keep it out of shared entries, find it on demand, erase it provably.

securityMay 25, 2026· 3m

Fail closed: why misconfiguring Crowkis locks it instead of opening it

Most self-hosted breaches are defaults, not exploits. Crowkis inverts the failure direction: forget to configure auth and you get a locked deployment, not an open one.

securityMay 22, 2026· 3m

The trust ledger: institutional memory for an immune system

Every accept and refuse, per source, append-only. Trust with memory changes attacker economics, and gives auditors the artifact they actually want.

securityMay 19, 2026· 3m

Air-gapped by design: AI caching where the internet isn't invited

No phone-home, offline license verification, one binary. The deployment story for networks that treat outbound packets as incidents.

securityMay 16, 2026· 3m

Compliance modes: HIPAA, SOC2, GDPR-EU, FedRAMP as configuration

Each regime wants specific retention, audit, and erasure behavior. Enterprise compliance modes preset the whole posture, so the auditor's checklist maps to a flag.

securityMay 13, 2026· 3m

Four doors, four locks: the authentication architecture

RESP, gRPC, REST, and the dashboard each get auth that fits their use, constant-time tokens for the data plane, RBAC for the control plane, mandatory locks past loopback.

securityMay 10, 2026· 3m

Closed-source as a security posture, argued honestly

'Many eyes' assumes the eyes show up. For your hot path, a signed single binary with zero dependencies is a smaller attack surface than a thousand auditable packages nobody audits.

securityApr 30, 2026· 9m

Cache poisoning is the whole problem

Semantic caching has an obvious failure mode nobody likes to talk about: one bad write, served forever to everyone nearby. This is how Crowkis decides what to trust.

securityFeb 19, 2026· 6m

A practical guide to AI guardrails

A practical guide to AI guardrails. A practical, Crowkis-grounded take, no hype, just what actually moves cost, latency, and safety.

securityFeb 16, 2026· 6m

How to reduce LLM hallucinations in production

How to reduce LLM hallucinations in production. A practical, Crowkis-grounded take, no hype, just what actually moves cost, latency, and safety.