Crypto security & Wallets
Published coverage, practical guides, and follow-up reads collected in one place.
Protecting digital assets starts with smart choices about custody, keys, and devices. This category demystifies wallet types, from hardware to mobile, and shows how to avoid phishing, fake apps, and risky approvals. Coin Saucer explains seed phrase storage, backups, multisig, and when to use cold vs. hot options so costs, convenience, and control align with goals. Whether first-time buyers, long‑term holders, or active DeFi participants, readers get clear, practical steps to reduce risk and recover faster if trouble strikes. Begin with the most relevant guide and move forward with safer habits today.
Safe API Keys for Exchange Trading Bots: Scopes, Rotation, and IP Whitelists
There’s a quiet moment before every deployment when I ask myself, “If this key leaked right now, what’s the blast radius?” That’s the mindset I bring from a dec…
PSBT Cold Signing for Bitcoin: Air Gapped Workflows That Prevent Key Exposure
Plugging a wallet into a hot laptop is convenient, but convenience is not a strategy. If your goal is long term protection, PSBT cold signing gives you a cleane…
The 12 or 24 Word Seed Decision: Security Tradeoffs Explained
I’ve recovered more compromised wallets than I care to remember, and the post-mortem rarely comes down to “not enough words.” In most cases, the failure was pro…
SIM Swap Through Number Recycling: Protect Crypto Accounts From Silent Takeovers
By Marcus “M.J.” Varela - cybersecurity specialist and DeFi strategist. Trust but Verify. Give up an old phone number and it doesn’t disappear-it gets recycled.…