Guides & How-tos · Worked examples · Real numbers

Do it right, with real numbers

Step-by-step how-tos, head-to-head comparisons and honest roundups — every guide worked through with current figures, then backed by a RECATOOLS calculator or AI-directory entry so you can act on it.

510 guides published 17 topic areas Latest guide Oct 2026

Tagged Security · 60 guides

All 510 Developer Tools 69 AI & ML 63 Finance 52 Home & Living 49 Chinese Culture 44 Science 43

A close-up of a dark code editor at an angle, syntax-highlighted Python filling the screen with a download function part-way down.

Business 5 min

Why CSV Libraries Do Not Stop Formula Injection

The same six values written by Python, by PHP, and by joining strings with commas. The libraries fix the commas and the...

Eva Chin

Pub. 25 Aug

A desktop monitor on a home desk showing a photograph of a cat open in image-editing software, toolbars and a histogram panel either side of it.

Privacy & Data 5 min

Which Image Operations Strip Metadata

A source image with six identifying tags and GPS coordinates, put through eight operations. Pillow drops everything unle...

Priya Nair

Pub. 25 Aug

A row of metro fare gates, some displaying a green tick and others a red cross, beneath station departure signage

Developer Tools 6 min

What Your Rate Limit Actually Limits

A route limited to 30 a minute and one limited to 60 turned out to share a single counter, because the framework keys it...

Kenji Tanaka

Pub. 22 Aug

A close-up of a row of pale locker doors, each fitted with its own separate lock

Privacy & Data 6 min

How to Stop an Agent Returning Documents the User Should Not See

A vector search scoped three ways, and measured each time. Unfiltered, four in five results belonged to another team; fi...

Priya Nair

Pub. 22 Aug

A wooden hand plane resting on a fresh length of planed timber against a weathered plank wall, its blade and wedge still seated and its handle worn smooth from use.

Developer Tools 6 min

How Old Is the Code You Installed?

The median package in this site's tree was published 286 days ago — but one in five has seen no release in two years, an...

Kenji Tanaka

Pub. 20 Aug

A close-up of a heaped pile of dozens of keys on a wooden surface, many still attached to brightly coloured plastic fobs and split rings, with a car remote at the edge and no way to tell which key opens what.

AI & ML 6 min

What Installing an Agent Toolkit Actually Grants

Giving an agent tools is one line of configuration, and that line does not say what any of them can do. We read all 77 t...

Kenji Tanaka

Pub. 20 Aug

Four banks of narrow metal mailboxes mounted on a weathered wooden wall, each box a different faded colour and several numbered by hand, with a rusted tin canopy above them.

Cybersecurity 5 min

Three DNS Records Almost Nobody Publishes

DNSSEC, CAA and MTA-STS each protect people who will never know they exist. Across 18 major ASEAN banks, government port...

Kenji Tanaka

Pub. 19 Aug

A red fire extinguisher in its bracket on a plain white wall in a quiet domestic hallway, its instruction label unmarked and its pin still in place, beside a closed panelled door.

Cyber Threat Intel 6 min

Can You Prove an Attack Was Prevented?

Early warning is what threat intelligence is sold on, and prevention is the least verifiable claim in security — the evi...

Priya Nair

Pub. 19 Aug

An aerial view of a night market after dark: dozens of rows of stall canopies in red, blue, white and orange, each lit from beneath, packed edge to edge so the individual stalls blur into a grid.

Cyber Threat Intel 5 min

Who Sells Threat Intelligence

Four quite different businesses use the same phrase, which is most of why the market is confusing. A map of the categori...

Priya Nair

Pub. 19 Aug

A blue coin-operated seafront viewer on a concrete plinth, pointed out across flat grey water under a heavy overcast sky, with a low treeline on the far shore.

Cybersecurity 6 min

What Your Own Domain Tells a Stranger

OSINT needs no budget and no access. We ran it against our own domain and found 26 robots.txt rules naming /admin/ and /...

Kenji Tanaka

Pub. 19 Aug

A market stall wall hung with dozens of near-identical festival masks, each a smiling face fringed with feathers and coloured beadwork, repeating in rows so that individual masks are hard to tell apart.

Cyber Threat Intel 5 min

What a Threat Actor Name Buys You

Reporting names adversaries with real confidence — APT29, Lazarus, Sandworm — and it is worth asking how much a name act...

Kenji Tanaka

Pub. 19 Aug

A glass pour-over coffee brewer on a wooden table, its paper cone still holding a bed of wet spent grounds while the brewed coffee sits dark in the carafe below, beside a small ceramic cup.

Cyber Threat Intel 5 min

From Feed to Decision

Buying a threat feed is the easy part. We work through the filtering that free public data already does to a scanner rep...

Priya Nair

Pub. 19 Aug

Showing 13–24 of 60 results

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