An interview with Crypto Katia (TLC 2019)

## Crypto Katia (TLC 2019) Podcast Summary

This podcast episode features an interview with Crypto Katia (Katoshi), a communications specialist from Trezor Labs, a company known for its hardware wallets. The conversation ranges from the lighthearted – joking about old German currency ("billion marks") and humorous anecdotes about losing cryptocurrency keys in boating accidents ("Treasurers don't float") – to serious discussions about the evolving landscape of cryptocurrency security. Katia’s role at Trezor is playfully described as primarily involving “eating a lot” and managing social media, highlighting the often-unconventional nature of roles in the crypto space. The interview explores the challenges of maintaining a consistent online presence, even referencing a humorous story about Katie Perry's crypto-themed nails.

The core of the discussion centers around the security of hardware wallets, particularly Trezor devices. A significant development discussed is Trezor’s introduction of a Bitcoin-only firmware option, designed to reduce the attack surface by eliminating code related to less secure altcoins. The team emphasizes the importance of key management, highlighting the risks of keeping large amounts of cryptocurrency on a single device and the need for air gapping to protect against sophisticated attacks like acoustic and electromagnetic interference. The open-source nature of Trezor is also presented as a key advantage, allowing for community review and vulnerability detection. Beyond the technical aspects, the conversation touches on the challenges of hardware development, referencing early issues with Coldcard's buttons, and the general market sentiment, with a shared observation that "everybody I know is broke."

Main Topics Discussed:

• Trezor Hardware Wallets: Overview of the Model 1 and Model T, and Katia’s role at Trezor.
• Hardware Wallet Security: Key management, risks of single-device storage, firmware vulnerabilities, and air gapping.
• Bitcoin-Only Firmware: Rationale, implementation, and user considerations.
• Open Source vs. Closed Source: Advantages of open-source hardware wallet development.
• Advanced Security Threats: Acoustic attacks, electromagnetic interference, and electrical grid vulnerabilities.
• Hardware Development Challenges: Difficulties in design and manufacturing.
• Social Media & Marketing: Challenges of maintaining an online presence in the crypto space.
• Air Gapping: The importance of complete isolation from potential attack vectors.

Key Quotes:

• Katia: "Usually when I say that I do communication, I think that I eat a lot."
• Host: "Treasurers don't float."
• Katia: "You're like running the boat, you need the keys." (Illustrating the importance of key management)
• "I wouldn't recommend it [keeping a treasurer with millions of coins]." (Regarding security risks)

People Mentioned:

• Crypto Katia (Katoshi) - Communications Specialist, Trezor Labs
• John - Unspecified role
• Ruben - Unspecified role
• Pierce - Unspecified role
• Katie Perry - Singer
• Pavel (Stick) - Trezor Hardware Development
• Chuck & Jeremy - Podcast Chat Participants

Bitcoin Prices:

• No specific Bitcoin prices were mentioned. The conversation alluded to a bear market and a period when "everybody I know is broke."