# Ledger CTO on How NOT to Lose Your Crypto

*Author: Ryan Sean Adams, David Hoffman*
*Published: Feb 28, 2023*
*Source: https://www.bankless.com/fr/ledger-cto-on-how-not-to-lose-your-crypto*

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In today’s episode, Charles walks through all levels of security. No matter if you’re just beginning your wallet security journey or if youre a veteran, this episode will teach you something new about all things crypto and wallet security. 

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### TIMESTAMPS
0:00 Intro

5:52 CTO of Ledger

8:35 Private Keys 

17:25 Avoiding Bad Entropy 

23:11 Private Keys & Seed Phrases

29:00 Mistakes Storing Seed Phrases

36:55 Securing Your Seed Phrase 

45:00 Overengineer Wallet Security

47:55 Cold vs. Hot Wallets 

54:22 Benefits of Hot Wallets 

58:47 Smart Contract Risk 

1:06:45 Allowances 

1:11:30 Allowance Access 

1:14:00 Blind Signing 

1:18:00 Solution to Blind Signing 

1:21:38 Resources to Learn More

1:22:22 Closing & Disclaimers 

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#### RESOURCES
Charles Guillemet

[https://twitter.com/P3b7_](https://twitter.com/P3b7_)

Ledger

[https://twitter.com/Ledger](https://twitter.com/Ledger)
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