Guides worth opening
Twenty pieces per page. The top half is what people actually open. Under that, the newest writing. Free tools live at /tools if you need a lookup, not a long read.
Most read
Linux without the sermon
A kernel, a distro, and a chance to read the logs. Not a personality.
1 clickRomance scams: the long con in your DMs
Stolen faces, fake trading apps, and why video is not optional after money talk.
1 clickWhen Obama’s Twitter asked you for bitcoin
July 2020. Real verified accounts, fake hands. A checkmark is not a person in the room.
1 clickEquifax lost data on people who never signed up
A credit bureau, an unpatched tool, and why a unique password would not have saved you.
1 clickThe Target breach started with an HVAC vendor
Christmas 2013, millions of cards, and the little company plugged into the big one.
1 clickYour browser has a fingerprint
Fonts, screen, and canvas. Clearing cookies does not make you a stranger.
1 clickHow email really travels
SMTP is still a chain of servers. From is a costume. Open money sites from a bookmark.
1 clickWho owns a domain name, and why that login matters
Registrars, renewals, and how stealing the name steals the mail.
1 clickWhy Telnet died and SSH stayed
Passwords in the clear on port 23. Encryption on 22. Old printers still have not heard.
1 clickThree copies of anything you would cry over
The 3-2-1 backup rule: three copies, two kinds of media, one off site, and a restore you actually tested.
1 clickNewly added
The AI race: the day a free app erased a trillion dollars
Google invented the blueprint and hesitated, OpenAI sprinted, and a Chinese startup crashed the market in a weekend. The story of the race behind every chatbot you use.
0 clicksHow ChatGPT is made: the story of teaching a machine to talk
No database of answers, no written replies. How next-word prediction, a mountain of reading, and thousands of human rankings produced the fastest-adopted product in history.
0 clicksHow do I buy crypto safely for the first time?
Four decisions: a regulated exchange you typed yourself, an amount you can lose, two-factor that is not SMS, and a plan for custody. The beginner mistakes that cost the most, in order.
0 clicksWhy does crypto mining use so much electricity?
Bitcoin burns energy on purpose: the cost is the security. Where miners find power, how Ethereum cut usage 99 percent with the Merge, and why home mining and cloud mining offers do not pay.
0 clicksWhat is DeFi? Banking without the bank, with the risk
Lending, borrowing, and trading run by smart contracts. Liquidations, liquidity pools, yield farming, why bridge hacks cost hundreds of millions, and a checklist before trying it.
0 clicksWhat is a stablecoin? The crypto built to sit still
USDT and USDC hold one dollar by design. How reserves keep the peg, how Terra UST lost 40 billion, what stablecoins are good for, and whether savings belong in one.
0 clicksWhat is an NFT, and what happened to them?
A blockchain entry that says this token is unique and this address owns it. Why NFT prices exploded, what you actually own, the scams that remain, and the quieter uses that survived the crash.
0 clicksWhat is Ethereum, and what is a smart contract?
A blockchain that runs programs, not just payments. Smart contracts explained with a vending machine, the DAO hack, the Merge, gas fees, and how Ethereum differs from Bitcoin.
0 clicksWhat is a crypto wallet, and why is the seed phrase everything?
A wallet stores keys, not coins. Hot vs cold wallets, where to keep a 12 or 24 word seed phrase, how wallets get drained, and what happens when the phrase is lost.
0 clicksIs Bitcoin anonymous? How crypto gets traced
Crypto is usually more traceable than cash. How investigators follow the public ledger, how an exchange ID or an IP address puts a name on a wallet, and what privacy coins and mixers change.
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