

The End of the Seed Phrase
Wrench attacks (the physical-force version of a crypto heist) are up roughly 169% in the past six months.
Self-custody has a design flaw.
A 24-word seed phrase is both the ultimate security mechanism and the single point of failure that has cost users billions. Lose the phrase, lose the assets. Get caught with it at gunpoint, lose the assets.
Meanwhile, wrench attacks are up roughly 169% in the past six months, according to data tracked by Jameson Lopp.
In this 51 Insights live session, we're joined by Dmitry Tokarev, founder of Copper Technologies (one of the largest institutional crypto custodians in the world) and now founder of Bron Labs.
Bron is a self-custodial wallet built on multi-party computation (MPC) — the same cryptographic primitive that secures billions in institutional custody — wrapped in a consumer-grade experience, with guardian-based recovery, hidden vaults, duress PINs, and programmable transaction limits.
Backed by $15M from LocalGlobe, Fasanara Digital, GSR, and ~140 other investors.
We’ll cover:
how Bron handles lost keys without compromising self-custody
duress PINs, secret vaults, transaction limits; what's real security and what's marketing
Live product demo
Who this is for: HNWIs tired of the seed-phrase-on-a-metal-plate security model. Builders in custody, wallets, or MPC. Allocators and VCs tracking the self-custody stack.
Host: Marc Baumann, Founder, 51 Insights
Guest: Dmitry Tokarev, Founder, Bron Labs (ex-Copper Technologies)
Register below & save your spot!