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Category107 articles

Fintech & Crypto

DeFi, digital payments, crypto regulation, and the transformation of money.

Top Story

El Salvador Officially Abandons Bitcoin as Legal Tender After Failed Experiment

Tico Times·Feb 2, 2025·6 min read

El Salvador has officially repealed its Bitcoin law, ending the world's first experiment with cryptocurrency as national legal tender. The move follows years of low adoption, public disinterest, and sustained IMF pressure.

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Featured

May 15, 2026

OpenAI Launches ChatGPT for Personal Finance, Will Let You Connect Bank Accounts

TechCrunch·6 min read

The AI giant is making its most aggressive move yet into fintech, allowing users to link bank accounts directly to ChatGPT for financial advice, budgeting, and transaction analysis.

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May 15, 2026

The US Is Using AI to Hunt Down Insider Trading on Polymarket

Wired·7 min read

Federal regulators are deploying AI systems to detect suspicious trading patterns on prediction markets like Polymarket, marking a new frontier in financial surveillance.

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May 16, 2026

The $293M KelpDAO Hack Shows Why DeFi Is Finally Being Forced to Grow Up

CoinDesk·10 min read

For protocol founders and security researchers, the incident reinforced a broader shift: DeFi is no longer primarily battling coding bugs. It's battling complexity.

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2026-05-14

Bitcoin trader recovers wallet with help of Claude

cednore·5 min read

An important story that earned 332 points and widespread discussion on Hacker News.

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All Articles

2026-04-28

Your terminal is burning battery like it's mining Bitcoin

droidjj·5 min read
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2026-04-12

SpaceX holds $603M in Bitcoin despite $5B loss stemming from xAI

lexandstuff·6 min read
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2026-05-09

User just tricked Grok and Bankrbot to send tokens with Morse code

wglb·6 min read
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2026-03-31

Show HN: Wageslave – I quit my soul sucking job to make a game about it

stonecauldron·8 min read
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2026-05-14

AI helps man recover $400k in Bitcoin 11 years after

kouosi·5 min read
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2026-05-10

Coinbase steep first quarter loss after slide in crypto prices; shares fall 4%

1vuio0pswjnm7·6 min read
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2026-05-06

The Crypto Industry Is Dying That Is a Good Thing

imaginaryunit01·5 min read
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2026-03-18

Show HN: We built AI agents that reduce mortgage processing from 18 days to 3–5

SimplAI_ai·6 min read
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2026-05-15

THORChain exploit hits Bitcoin, Ethereum, and BSC: Hackers steal over $10M

wslh·6 min read
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2026-04-27

Bitcoin Dev Plans to 'Reassign' Coins Linked to Satoshi Nakamoto in Hard Fork

HardwareLust·6 min read
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2026-05-18

The Mysterious Crypto Judges Who Settle Polymarket Disputes

thm·5 min read
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2026-05-13

The Ozempic plateau may be caused by the drug starving the gut bacteria

cryptarsh·6 min read
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2026-05-08

Coinbase logs second straight quarterly loss as crypto trading momentum fades

1vuio0pswjnm7·6 min read
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2026-05-06

Direct SQL access to over 286B crypto trades

knazim·5 min read
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2026-02-27

Jack Dorsey's fintech announces 40% layoffs, blames AI, gets 23% stock bump

Bender·6 min read
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2026-04-23

Spark: Bitcoin's Payment Layer for Stablecoins and Instant BTC

janandonly·5 min read
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2026-04-23

The U.S. Military Is Running a Bitcoin Node, Admiral Says

giuliomagnifico·5 min read
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2026-03-07

I Failed an Interview. Fair or Not, I Built This Workbook

nanacnote·6 min read
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2026-02-16

Fintech security architectures: where they break and why

flreln·5 min read
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2026-05-08

Why Tennessee just banned cryptocurrency ATMs

pavel_lishin·4 min read
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2026-05-04

The wild life and brutal death of a crypto hustler

pseudolus·5 min read
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2026-04-20

Bitcoin and Quantum Computing: A Roadmap

nehan·4 min read
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2026-04-20

Two Paradoxes Blocking Bitcoin

moeman245·4 min read
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2026-04-19

Show HN: Using Ramanujan's Pi Series for Bitcoin Security on Nvidia B200

Prakash_1·6 min read
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2026-04-16

Adam Back Pushes for Optional Upgrades to Quantum-Proof Bitcoin

wslh·5 min read
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2026-05-18

How Trump's crypto venture and Iran's top exchange tapped into the same networks

notagoodidea·6 min read
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2026-05-18

Two Americans Arrested After Crypto Stunt in Punch the Monkey's Zoo Enclosure

razorbeamz·6 min read
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2026-05-13

ZachXBT traces $19M crypto social engineering scheme by a teenager

Cider9986·5 min read
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2026-05-13

Show HN: I built a crypto price predictor

hieunc229·5 min read
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2026-03-09

How are fintech companies using AI to speed up loan approvals?

shanmugarajsk·6 min read
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2026-03-06

Lloyds strives to be 'UK's biggest fintech' by selling more customer data

samizdis·6 min read
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2026-05-08

A 3D explorer of the Bitcoin blockchain

dca_mindset·5 min read
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2026-04-30

Guess at lost Bitcoin, right in the browser

jumploops·5 min read
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2026-04-20

A quantum computer can be used to steal your Bitcoin in '9 minutes'

stubbi·6 min read
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2026-05-13

ZachXBT exposes alleged 18-year-old crypto thief tied to $19M in scams

paulpauper·6 min read
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2026-05-10

My Marstek B2500-D battery sends telemetry over plain HTTP

sunbury·5 min read
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2026-05-10

Crypto exchange Coinbase to lay off 14% of staff as AI reshapes work

1vuio0pswjnm7·6 min read
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2026-05-07

Student stops fоur Taiwan high-speed trains with software defined radios

lschueller·5 min read
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2026-05-08

AI is rapidly changing cybersecurity across the world

rindodi·5 min read
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2026-03-11

Sensational news. Fintech has published banking secrets for public access

Kizert·5 min read
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2026-02-11

The SaaSpocalypse – The week AI killed software

gmays·5 min read
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2026-02-09

London Fintech Unicorn Zepz laid off 20% of staff

ta9000·5 min read
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2026-05-14

Dude where's my password? Claude reunites forgetful stoner with $400k Bitcoin

NordStreamYacht·6 min read
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2026-05-12

Breez SDK Case Study: Deblock, Instant Bitcoin at Scale

janandonly·5 min read
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2026-05-12

Thomas Massie for Congress accepts Bitcoin donations

Cider9986·5 min read
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2026-05-03

BTC Pulse – 4-factor composite model · Bitcoin Real-time macro signals

tvvocold·6 min read
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2026-04-23

Warren Buffett: Why Stocks Beat Gold, Bonds and Bitcoin (2018)

andsoitis·5 min read
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2026-04-22

'Finding Satoshi' Makes the Case for Hal Finney, Len Sassaman as BTC Co-Creators

tromp·6 min read
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2026-04-19

Satoshi Nakamoto: 'The best outcome is that no one ever finds out'

geox·6 min read
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2026-04-16

How the Bitcoin protocol works (2013)

downbad_·4 min read
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2026-04-15

Digital Archaeology: where does Bitcoin's 21M come from?

anax32·5 min read
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2026-04-14

Fake Ledger app on Apple App Store linked to $9.5M crypto theft

smithcoin·6 min read
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2026-05-15

1/4 of this month's Crypto-Gram articles are about Mythos

Kaibeezy·5 min read
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2026-05-14

Cross-country scheme to steal cryptocurrency involved fake food orders

rawgabbit·5 min read
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2026-05-12

Show HN: Game evolves itself with your wishes

xkoda·5 min read
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2026-05-12

Ripple to share North Korean threat intelligence with crypto firms

PaulHoule·5 min read
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2026-05-12

Silent-Bench: cryptographic audit of LLM gateways (47.96% vs. 1.89%)

wesamalsabban·5 min read
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2026-05-08

Canada's Spring Economic Update 2026 proposes to ban crypto ATMs

pavel_lishin·5 min read
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2026-05-07

Show HN: Crypto Trading Simulator – 11 coins, candlestick charts, zero risk

repurpose_ai·6 min read
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2026-05-07

AI Agent Drained for $200K with This One Tweet Hack

aledevv·5 min read
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2026-05-06

How is NSA breaking so much crypto? (2015)

downbad_·5 min read
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2026-05-16

TikTok Performance Problems and Feed Instability: What's Going Wrong and How To

rindodi·6 min read
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2026-03-18

Show HN: Deductly – I'm a restaurant owner with 15 years in tech. this saved me

Salniazi·8 min read
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2026-03-06

Show HN: AI trading platform with 34% returns (3 months) – seeking acquisition

fkratzer·6 min read
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2026-03-03

What Are the Most Promising FinTech Startups to Watch in 2026?

journey2s·6 min read
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2026-02-17

Show HN: WonderTwin AI – Local API twins for safe agentic development

telaandrews2·6 min read
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2026-05-06

Bitcoin treasury firm breaks from 'never sell' approach to the flagship crypto

1vuio0pswjnm7·6 min read
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2026-05-02

Show HN: PythonStarter – now with Bitcoin Lightning payments

dan_easterman·5 min read
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2026-05-01

Bitcoin Is Venice (2021)

simonebrunozzi·4 min read
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2026-05-01

Show HN: Bitcoin Monitor Widget

hda_ycombinator·4 min read
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2026-05-01

U.S. Seizes $15B in Bitcoin in Crypto 'Scam' Crackdown

maxloh·5 min read
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2026-04-30

Iran Proposes Bitcoin Oil Toll

janandonly·4 min read
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2026-04-29

Quantum Hardening Bitcoin: Cryptographers init PQC engineering and review

DINKDINK·5 min read
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2026-04-27

Jack Dorsey's Block launches new Bitcoin hardware wallet, Bitkey

obnauticus·5 min read
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2026-04-25

South Africa's Draft Capital Flow Management Regulations, 2026

DavGit·5 min read
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2026-04-23

US admiral calls Bitcoin an instrument for US 'power projection'

wslh·5 min read
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2026-04-15

A Technically-Fluent Bitcoiner's Inheritance Story

alcazar·4 min read
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2026-04-14

Unmasking the Creator of Bitcoin [audio]

doener·4 min read
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2026-05-18

Show HN: Real-Time Order Flow and Whale Tracking

santys·5 min read
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2026-05-17

AI Playground – Let AI agents play safely

cryptomilk·5 min read
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2026-05-15

Crypto-Agility Is a Runtime Property, Not a Compliance Checkbox

doomhammerhell·5 min read
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2026-05-15

Crypto Prediction Markets Explained

Anon84·4 min read
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2026-05-15

The Keysigning Party HOWTO (2008)

greyface-·4 min read
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2026-05-14

North Korean hackers siphon $12M+ from crypto users in sprawling campaign

PaulHoule·6 min read
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2026-05-08

Use of the ML-DSA Signature Algorithm in the Cryptographic Message Syntax

mooreds·6 min read
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2026-05-07

A Kindergarten Teacher Attempts to Explain Cryptocurrency

PaulDavisThe1st·5 min read
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2026-05-06

Show HN: Accept crypto payment in your business (only 1% fee, feedback welcome)

paycoinly·6 min read
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2026-04-14

Synctera acquires compliance startup Cable

thatdrew·4 min read
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2026-04-07

Vairav Fintech Threat Index

cyberdefender·4 min read
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2026-04-06

No more retyping same information

keyu_revelio·4 min read
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2026-04-06

Mac'26 – Europe's Largest Affiliate Conference

vanflyer·4 min read
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2026-03-10

Sensational news. Fintech has published banking secrets for public access

Kizert·5 min read
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2026-03-06

Show HN: Checking if financial processes can be bypassed before deployment

burlakovlm·6 min read
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2026-02-24

STARC framework for Bank-Fintech risk management

petethomas·4 min read
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2026-02-21

Show HN: RealDeed PropPass – Own Indian Real Estate Digitally from INR 10k

oxfpr555·6 min read
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2026-02-18

Show HN: A public map of startups worldwide (anyone can add theirs)

zacharykapank·6 min read
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2026-02-10

Stripe eyes tender at more than $140B

dalanmiller·5 min read
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107 articles in Fintech & Crypto