Guides that teach you to do the thing.

Enterprise deals stall without SSO. Here is how to add SAML and OIDC single sign-on the right way, model it multi-tenant, and price it without the SSO tax.

A working guide to passkeys and WebAuthn: the ceremony, real server and browser code, synced vs device-bound tradeoffs, and the recovery design that makes or breaks it.

CIAM is customer identity: registration, consent, and login built for the people who buy from you, not the people who work for you. Here is how it differs from workforce IAM and when you need it.

OAuth 2.0 is authorization, OIDC adds authentication, and SAML is enterprise federation. Here is what each actually does, the token types, and a decision table for when to use which.

A runbook for moving off Akamai Identity Cloud (formerly Janrain) before end-of-life: inventory, bulk export, just-in-time password migration, a staged cutover with rollback, and the user-comms plan.

How to implement SCIM 2.0: the User and Group schema, the endpoints you must build, deactivate-not-delete flows, group-to-role mapping, and testing against Okta and Entra.

An MCP server hands a model the power to act. Here is how to secure it: authN/authZ per invocation, least-privilege tools, untrusted-output handling, brokered secrets, and audit logs.

A first pass at LLM red-teaming: the four failure classes, a starter probe set, direct vs indirect injection, scoring, guardrail limits, and turning it into a CI regression suite.

The honest seed-stage SOC 2 playbook: Type II scoped to Security, realistic cost and timeline, the three controls that matter, whether Vanta/Drata are worth it, and how to avoid theater.

The four authorization models compared: RBAC (role), ABAC (attributes), ReBAC (relationship), PBAC (policy). What each is, where each breaks, and a decision table for choosing.

GEO is optimizing to be the source AI answers cite, not to rank in a list of links. Here is how it differs from SEO and AEO, why citation share is the metric, and what a GEO program involves.

A zero-downtime runbook for leaving Auth0: what is portable, trickle vs bulk migration, bcrypt hash export, Rules/Actions remapping, coexistence cutover, and rollback.

The minimum viable identity and security stack for a 1 to 5 person B2B SaaS, in priority order, with an honest do-now-vs-defer table and what to deliberately skip.

A tiered directory of the specialised US cybersecurity consultancies worth a CISO's shortlist, from Optiv and Coalfire down to the boutiques, plus five questions that predict engagement quality.

A decision framework rather than another listicle: four compliance problem types, industry matching, five predictive evaluation criteria, and 2026 pricing benchmarks.

Every investor objection is a proxy. Here is how to hear the real question, concede what is true, and answer with evidence instead of conviction.

Write the argument as four paragraphs before you make a slide. Why now is the seed-stage crux, and a deck that needs you present will be read without you.

The monthly update is a fundraising instrument. It converts a pass into a yes over six to twelve months by showing, in writing, that you do what you said.

Warm intros close seed rounds. Confirm 8 meetings before you fly, host one dinner, and put everyone who passed on a monthly update.

A seed round is a six-week campaign, not a lifestyle. Open with 12 to 18 months of runway, a list, and a milestone. Close when you have a lead and a date.

Pre-seed is not a smaller seed. It buys 12 to 18 months to find a reason to raise one: who writes first checks, what you need, and a clean rolling SAFE.

A post-money SAFE is the default at pre-seed and most seeds. Price the round when a lead wants a board seat and a price. Dilution math and the traps.

Series A buys a machine that turns capital into predictable growth, not a louder seed story. What A funds underwrite, and how to know you are early.

Valuation is the headline. Control is the operating system. Here is what is normal on a seed or A term sheet, what to fight, and what to ignore.

ChatGPT and Perplexity agree on only 11% of cited domains. Here is the three-tier media model that builds authority instead of a logo wall.

Editors spend about four seconds on a cold pitch. Six templates for source requests, trades, follow-ups, and the diagnostic for why a pitch died.

Pick outlets by whether the engine retrieves them for your buyer's questions. Prestige logos are not a citation strategy.

In B2B and AI search the company often gets retrieved through the person first. Here is how to point founder brand at the product.

A clipping is not a citation. Same-day absorption, an owned page for the claim, and a prompt set to see whether the idea became retrievable.

A shared secret you can type is a secret an attacker can replay. What actually breaks, what does not fix it, and the order to replace passwords.

NIST restricted SMS as an authenticator in 2017. SIM swaps and real-time phishing are why. What to rip out, and what to put in.

A long-lived key in a repo or an agent env is a master key you cannot inventory. Workload identity, short-lived tokens, and brokered secrets are the replacement.

GEO for a software company is owning the five questions a buyer asks an engine. The stack, the page types, and a 90-day program a small team can run.

Do not pick CIAM from a logo grid. Decide whether you need it, score five questions that discriminate, bake off four flows, and know when to stay.

An agent is a new principal. Do not give it the user's cookie or the server's root key. Per-action auth, brokered secrets, and an audit id.

After the solo-founder floor: workforce identity, machine credentials, customer RBAC, exportable audit, and SOC 2 on a trigger. What to add, and what to still defer.

AI engines assemble answers from three layers, not one ranking. Here is the parametric memory, retrieval index, live fetch model, an engine-by-engine comparison, and why blocking the wrong crawler token costs you a whole surface.

Query fan-out is how AI engines rewrite one prompt into several hidden sub-queries and retrieve each separately. Here is how it works, how to reconstruct your own fan-out footprint, and why Ahrefs found over a third of AI Overview citations skip the top 100 organic results entirely.

The full protocol for auditing AI search visibility: build a 60 to 150 prompt universe, test search on and off across engines, read the diagnosis matrix, and build a source ledger that becomes your roadmap.

Every AI lab ships a training bot, a search-indexing bot, and a live-fetch bot, each needing its own robots.txt directive. Here is the full configuration, the llms.txt verdict backed by four independent studies, and what to check beyond the file itself.

AI engines retrieve passages, not documents. Here are the sentence-, section-, and page-level rules that measurably move citation rate, backed by a 150,000-citation sentence-length study.

All five mainstream reverse proxies will work. Choose on operating model, meaning where configuration comes from, not on benchmark numbers you will never hit.

Deploy TLS inspection only with managed devices, a written bypass list, and a defensible retention policy. Here is what it sees, what it breaks, and where it stops working.

Default-deny egress at a proxy the agent cannot route around is the highest-leverage single control for agent security. An allowlist alone will not stop exfiltration.

ChatGPT launched ads in February 2026, Google and Microsoft serve them from campaigns you already run, and Perplexity walked away entirely. Here is how the surface works, how it differs from search, and the tier constraint that decides whether it fits B2B.

Campaign structure, objectives, budget, context hints, creative limits, and the measurement stack to configure before launch, plus the five failure patterns that account for most wasted first-campaign budget.

Context hints replaced keywords as the targeting control in ChatGPT Ads. Here is the four-part structure that matches well, worked examples at three intent stages, the six mistakes that waste budget, and how to source hints from real buyer language.

Gmail's blue checkmark requires BIMI, DMARC at enforcement, a registered trademark, and a VMC costing $750 to $1,400 a year. Full requirements, steps, costs, and when to skip it.

Reaching p=reject takes six to eight weeks and one hard prerequisite: naming every system that sends as your domain. The staged rollout, the alignment rule people miss, and what breaks.

SPF, DKIM, DMARC, ARC, MTA-STS, TLS-RPT, and BIMI in one page: what each layer proves, where the boundaries sit, and why every one of them degrades silently.

Web Bot Auth signs agent requests with a verifiable key, turning "this claims to be ChatGPT" into proof. The drafts, the CDN path, origin verification, and the policy that has to come first.

Sigstore proves who built it, SLSA provenance proves how. Generation is nearly free on hosted CI; verification with a real policy is the project. Levels, steps, and the silent failures.

Signing what you produce, verifying what you ingest, and deciding what absence means. The pipeline audit that decides whether any of it survives to the browser.

Assume the voice, face, and story are perfect. The controls that still hold are process controls: out-of-band callback, dual authorization, a slow vendor-detail workflow, and a blameless stop.

Gmail's checkmark proves a trademark. X's proves a payment cleared. LinkedIn's proves an ID matched a face. What each badge checks, what it costs to counterfeit, and why none of them make a message safe.