Charles Guillemet(@P3b7_) 's Twitter Profileg
Charles Guillemet

@P3b7_

CTO at @ledger. Busy securing the blockchain revolution. Cryptography, (Hw) Security, Tech, Blockchain.
Previously built the Donjon (@DonjonLedger)

ID:1041276721759043584

linkhttps://fr.linkedin.com/in/charles-guillemet calendar_today16-09-2018 10:44:51

3,3K Tweets

13,1K Followers

268 Following

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Charles Guillemet(@P3b7_) 's Twitter Profile Photo

Impressive attack chains exploiting 4 zero-days spotted in the wild!

The most concerning part is the undocumented HW feature 'Our guess is that this unknown hardware feature was most likely intended to be used for debugging or testing purposes by Apple engineers or the factory,…

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Ledger(@Ledger) 's Twitter Profile Photo

We are 100% focused on following up to last week’s security incident, making sure incidents like this are prevented in the future, and that the ecosystem remains safe.

We are aware of approximately $600k in assets impacted, stolen from users blind signing on EVM DApps.

Ledger…

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Dan Tapiero(@DTAPCAP) 's Twitter Profile Photo

The world is not ready for this chart.

Raoul Pal continues his excellent work with monthly GMI report.

A 200k in 2024 suggests a true and imminent change in the world.

Zero exposure will pose career risk for traditional money managers.

Money and value get redefined.

The world is not ready for this chart. @RaoulGMI continues his excellent work with monthly GMI report. A 200k #Bitcoin in 2024 suggests a true and imminent change in the world. Zero exposure will pose career risk for traditional money managers. Money and value get redefined.
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Antoine Poinsot(@darosior) 's Twitter Profile Photo

Did you know? The Ledger Nano S+ and X are the only hardware signing device out there with a screen directly connected to the SE. That's why it's a bit less convenient to verify an address: you are not merely trusting a microwave chip.

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Julian Togelius(@togelius) 's Twitter Profile Photo

At least from this press release, it seems that the EU AI Act came out less bad than feared. We seem to have avoided any need for licensing or similar for foundation models, and open-source distribution is permitted and seemingly even encouraged.
europarl.europa.eu/news/en/press-…

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Charles Guillemet(@P3b7_) 's Twitter Profile Photo

Sad to see this project won't continue. I hope the open source code will be used for future projects.

ZK is very useful to scale blockchains, but its first use is really confidentiality/privacy.

Best of luck to the teammates for the future!

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Charles Guillemet(@P3b7_) 's Twitter Profile Photo

In order to securely manage your crypto. You need to:
1. Generate your secret inside a secure enclave
2. Implement the cryptography inside this enclave
3. Have a Trusted Display connected to this enclave so that the user can understand the transaction he's about to sign.

These…

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Charles Guillemet(@P3b7_) 's Twitter Profile Photo

Hey, we currently disclose all information that we track here: ledger.com/privacy-policy. We use this to make Ledger Live a better experience, as it informs bug fixes we make and improvements to the experience of using it. If you’d like to turn off tracking, you can click on…

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Ledger(@Ledger) 's Twitter Profile Photo

Our CTO Charles Guillemet took the stage at India Blockchain Week (IBW) Conference to discuss how hardware wallets will secure the digital revolution!

“What make crypto unique? It is permissionless. And the best way to manage it is decentralized consensus and self custody.”

Our CTO @P3b7_ took the stage at @IBWofficial to discuss how hardware wallets will secure the digital revolution! “What make crypto unique? It is permissionless. And the best way to manage it is decentralized consensus and self custody.”
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Charles Guillemet(@P3b7_) 's Twitter Profile Photo

We build platforms for developers, enabling them to leverage the security of ledger.

You can:
- build your app on nanos
- add the support for your chain in live
- add your DApp in live
- integrate ledger in your app
All you need is on our new dev portal
developers.ledger.com

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Charles Guillemet(@P3b7_) 's Twitter Profile Photo

If the protocol thinks it's a vulnerability, it will fork. For now, inscriptions are paying for the Security of Bitcoin, and I'm not sure a protocol change is to be expected.

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Charles Guillemet(@P3b7_) 's Twitter Profile Photo

Bitcoin price is rising fast, so is the hashrate!
At 628 EH/s, with s19pro Hardware, the profitability point is at $0.09 for 1kWh.

Bitcoin price is rising fast, so is the hashrate! At 628 EH/s, with s19pro Hardware, the profitability point is at $0.09 for 1kWh.
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Signal(@signalapp) 's Twitter Profile Photo

We have no investors, no advertisers, nobody breathing down our necks demanding that we compromise on privacy for the sake of the bottom line. Signal is supported by you and your donations. 1/

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