CRYPTO
Beginner-friendly crypto tutorials, exchange guides, Sui ecosystem notes, on-chain practice, and risk management basics.
LATEST CRYPTO GUIDES
Recent exchange tutorials, on-chain tool tests, and crypto market notes.
Binance's hot wallet was hacked at about 20:05 UTC on October 29, 2026. About US$6.34 billion in assets was affected. Binance says it will cover the losses, and withdrawals resumed in phases on November 1. The FBI attributes the attack to North Korean hackers. A full recap as of 11:00 UTC, November 7, 2026 (19:00 Taipei).
How did Ledger hardware wallets end up with a hidden chip? Based on the 2026 reseller-channel implant case, this guide explains the three conditions behind the attack, a pre-purchase checklist, setup steps, and the difference between wallets with a screen and card-type wallets.
CRYPTO CARD
Community and Penchan tests of the Ether.fi Card at 60+ merchants and across five payment methods in Taiwan, with cross-border notes for Hong Kong, mainland China, and Singapore.
Learn how to apply for the Ether.fi Card, use its Core 3% rewards, add funds, withdraw at ATMs, and compare fees. Includes the referral code and card steps.
Showing 5 of 7 articles.
CRYPTO CARD
RedotPay card application, invite code, and fees.
CRYPTO CARD
Plasma One card application, referral code, and fees.
CRYPTO CARD
Ethena card application, invite code, and fees.
CRYPTO EXCHANGE
Coinbase account setup, card, and fees.
CRYPTO EXCHANGE
Binance's hot wallet was hacked at about 20:05 UTC on October 29, 2026. About US$6.34 billion in assets was affected. Binance says it will cover the losses, and withdrawals resumed in phases on November 1. The FBI attributes the attack to North Korean hackers. A full recap as of 11:00 UTC, November 7, 2026 (19:00 Taipei).
Learn how to apply for the Binance Card, where to enter the PENCHANCO referral code, how its 1.5%, 2%, and 3% cashback tiers work, and what fees apply. Includes Google Pay, LINE Pay, and the pause on new Apple Pay setups in Taiwan.
CRYPTO EXCHANGE
A Bybit Card guide covering application steps, physical-card requirements, six reward tiers, and fees. Enter referral code PENCHANCO at signup; if missed, the primary account can add it within 14 days, provided no code is already registered.
Bybit account-opening guide: futures Maker fees from 0.02%, an intuitive interface, and a complete illustrated flow from registration and KYC to your first deposit. Finish in about 30 minutes and use the referral link for benefits.
CRYPTO EXCHANGE
Crypto.com account setup, card, and fees.
CRYPTO EXCHANGE
Gate account setup, card, and fees.
SOLANA ECOSYSTEM
Cards, wallets, and apps in the Solana ecosystem, tested hands-on.
Learn how to apply for the Jupiter Card in Jupiter Mobile, use referral code YRBX2NJ5, and understand its 2% USDC rewards, fees, limits, and application steps. It is offered in 52 countries and regions.
A KAST card guide covering sign-up, virtual and physical card costs, rewards, and fees. Enter invite code RK0KC2CM during registration; if you miss it, add it in the app before your card spending reaches $600.
CRYPTO EXCHANGE
Guides to the Bitget exchange and Bitget Wallet, including its card.
CRYPTO EXCHANGE
Kraken account setup, the Krak card, and fees.
CRYPTO CARDS
Application, invite codes, and fees for other crypto payment cards.
Compare Etherfi, Plasma, Tria, Crypto.com, COCA, and Cashi for Black Friday 2026: cashback, FX fees, monthly limits, regional eligibility, and sign-up offers.
How to apply for the CoinJar Card, which only Australian residents can get. Covers the card issuer, the 1% purchase fee returned as CoinJar Rewards points, the 3.99% foreign exchange cost, adding the card to Apple Pay and the application steps.
Showing 5 of 26 articles.
WALLET
Guides to Fluidkey self-custody wallets, stablecoin payments, and USD on/off-ramp workflows.
Have money in Interactive Brokers (IBKR) and want to move dollars back on-chain as USDC? This illustrated walkthrough breaks down the full flow: withdraw from IBKR over ACH to your same-name FluidKey USD account, then have it automatically converted into USDC on Base. Includes a real 10 USDC timing test, plus the same-name rule, withdrawal hold periods, tax, and other red lines.
FluidKey is a stealth-address layer built on Safe smart accounts. It stacks three jobs in one interface: private receiving with a fresh address for every payment, USD/EUR account details so USDC can move like dollars, and Auto-Earn for stablecoins. Penna breaks down how it works, the fees, supported chains, and the risks, with a referral link included.
WALLET
How to choose, safely buy, and set up cold and hardware wallets.
CRYPTO BASICS
Crypto basics, exchange selection, order types, and risk management for beginners.
MARKET CRYPTO
Company research, model competition, and supply-chain context organized as durable market notes.
