Was your seed phrase ever actually random? More than $120M drained across 3 wallet hacks since May. And none of those breaches actually broke the cryptography itself Trezor's Head of research and development put it this way: even if the entire Bitcoin mining network did nothing but guess seeds, getting through them would take roughly the age of the universe Seed is supposed to be one out of 2^128 pick. And that math only holds if the wallet actually picked randomly 2026 clearly showed that assumption failed three times in five months: - May 27, Ill Bloom: ~$3.14M swept from 431 wallets in one coordinated pass. Seed gen behind it was shipped in 2014 (more than a decade ago) - Jul 30, Coldcard: 1,196 addresses emptied in 41 minutes for 1,082 BTC (~$70M). The firmware had been pulling seeds from a software fallback instead of the hardware RNG since March 2021 - Oct 17, Qubic: 1,404 wallets drained in 104 minutes for ~2.94T QU (~$1.4M) Different chains, different products, same failure: the wallet asked for a random number and got something that only looked random All of these look like bad luck, but here's what happens if we take a closer look: • all these bugs are old • the drain comes first, and the root cause got traced after • the patch doesn't save you. updating does nothing for a seed that already exists, and the patch only covers new ones • once the bug goes public, it's open season. separate attackers try to get advantage from it • the victims weren't sloppy. 88% of the stolen Coldcard BTC had sat untouched for at least a year (~3.5 years dormant on avg) It took 6 years to really fix cryptojs: "randomBytes is not random enough" issue from 2014 got fixed in 3.2.0, then 3.3.0 put the weak code back. The real fix only landed in 4.0.0 in 2020 None of this shows up in testing Coldcard's weak seeds looked perfectly random and would have passed every statistical test, Coinkite even paid for an audit in March 2022 that covered the RNG, but still missed the bug The main problem is that every weak seed is still a valid seed Not sure where your seed came from? - run your address through illbloom.org - Coldcard: check Coinkite's tips - Qubic: check which devices Qubic flagged - flagged? make a fresh seed, move the funds (updating won't fix it) Turns out the weakest part of self-custody wasn't the chain or the cold storage, it was fake RNG all the time