Security
Google's Quantum Chip and Bitcoin: Run This Checklist First
Google cut quantum errors 40-fold using magic state cultivation. A self-check for what that actually changes about your Bitcoin addresses today.
Nexus Dev ·
Tag
Self-Custody
Archive
41 entries
Self-Custody
Aave's Bitcoin Collateral Plan: Who Actually Holds It?
Babylon asked Aave's DAO to accept native Bitcoin as loan collateral with no bridge and no custodian. Here is exactly how the vault would hold your BTC.
Nexus Dev ·
Self-Custody
Bitcoin Whale Wallet Moves $378M After 6 Years
A wallet that received 4,582 BTC nine days before the March 2020 crash just moved $378 million. Here is what the on-chain record actually shows.
Nexus Dev ·
Self-Custody
Liquid Froze Bitcoin Redemptions. Check the Reserve
Liquid bitcoin redemptions are still frozen with reserves at 85.77 percent of outstanding L-BTC. Here is how to check the gap yourself.
Nexus Dev ·
Self-Custody
1 Billion in Seized Bitcoin Moved. The Numbers Explained
A government-linked wallet moved 12,267 BTC from the 2016 Bitfinex hack after years in custody. Here is what the numbers show about control.
Nexus Dev ·
Self-Custody
P7 DarkSword Spyware Hunts Crypto Wallets: Check This
iVerify found iPhone spyware that scans for crypto wallet apps and pulls wallet data every 15 seconds. Here is the walkthrough to check and close it.
Nexus Dev ·
Self-Custody
Coldcard's X Hack: What It Means for Your Bitcoin
Coldcard's own X account posted a phishing link on October 11. What happened, and what it changes about trusting official posts.
Nexus Dev ·
Self-Custody
Ledger Hack: What a Wallet Breach Means for You
Ledger confirmed a hardware implant in one device tied to an $86M+ reseller case. What that does, and does not, mean for your own bitcoin security.
Nexus Dev ·
Bitcoin
100 Bitcoin From 2010 Moved. What the Numbers Mean
A 100 BTC stash mined in 2010 just moved after 16 years. The real numbers behind it, and what they say about solo mining odds today.
Nexus Dev ·
Self-Custody
FinCEN Drops Its Self-Custody Wallet Rule: What Changed
FinCEN withdrew its plan to track self-custody wallets over $10,000. What actually changed, and what still applies, for solo miners who keep their own keys.
Nexus Dev ·
Self-Custody
Quantum Computing and Bitcoin: What to Check Today
VanEck says quantum risk doesn't justify selling Bitcoin yet. A step-by-step look at what exposes an address, and what BIP-360 does and doesn't fix.
Nexus Dev ·
Self-Custody
MetaMask's Incident: What Non-Custodial Doesn't Cover
MetaMask's September 30 infrastructure incident forced a validator exit while wallets stayed safe. What non-custodial promises, and what it doesn't.
Nexus Dev ·
Self-Custody
The SEC's New Crypto Custody Rule: Myth vs Reality
The SEC proposed new crypto custody rules on Oct. 1, 2026. What the proposal actually changes for investment advisers, measured against the headlines.
Nexus Dev ·
Self-Custody
Brazil's $10K Self-Custody Rule: Myth vs Reality
Brazil now requires reporting on crypto transfers of $10,000 or more tied to self-custody wallets. Here is what the new rule actually does, and does not do.
Nexus Dev ·
Security
Duelbits Lost $7 Million. Check Your Own Wallets Against It
Duelbits went offline after a $7M hot-wallet hack. Run this checklist on every platform holding your crypto, including a mining pool.
Nexus Dev ·
Non-Custodial Mining
BitMEX's Last Days: An 11-Year Custodian Closes
BitMEX shuts down September 23 with a clean 11-year security record intact. Its closure shows custodial risk is bigger than just getting hacked.
Nexus Dev ·
Non-Custodial Mining
Blink Wallet Hack: Custodial Myth vs Reality
Blink Wallet's breach drained custodial accounts but left its non-custodial Spark accounts untouched. Here is what that split actually proves.
Nexus Dev ·
Glass Ledger
iPhone Wallet Key Theft: What To Do, In Order
A full-chain iOS exploit can silently pull crypto wallet keys from Safari alone. Here is the order of checks and fixes to run right now.
Nexus Dev ·
Self-Custody
D'CENT Wallet Hack: The Numbers That Decide Your Exposure
D'CENT's report narrows the app wallet hack to versions before 8.1.0 and addresses that signed. The numbers, and what they mean for a mining payout address.
Nexus Dev ·
Self-Custody
D'CENT Wallet Hack: Find Every Copy of Your Seed Phrase
The D'CENT app wallet hack drained 2.01M XRP from 1,552 wallets. A seven-step audit to find every copy of your seed phrase, mining payout address included.
Nexus Dev ·
Glass Ledger
What a Lightning Node Bug Teaches Solo Miners
A Core Lightning bug tied to reported fund losses shows why self-custody means checking your own software, not just running it. What the advisory says.
Nexus Dev ·
Self-Custody
The EU's New Wallet Disclosure Rule, By the Numbers
The EU now gives crypto wallet makers 24 hours to report exploited flaws. Here is what the Cyber Resilience Act's actual numbers mean for you.
Nexus Dev ·
Security
Revolut Data Breach: What Bitcoin Miners Should Know
Revolut sent passports, selfies and Bitcoin histories to a fake government request. What leaked, why it matters on-chain, and what miners can do.
Nexus Dev ·
Glass Ledger
Trezor Phishing Scam: The Fake Alert Explained
Hackers breached the email platform behind Trezor and BitBox to send a fake 'critical' wallet alert. Here is exactly what happened and how to verify a real one.
Nexus Dev ·
Glass Ledger
Liquid Network Restart: What Actually Came Back
Liquid resumed block production on September 10, but transactions and pegs stay suspended and 598.5 BTC is still out. What the restart really restored.
Nexus Dev ·