Tangem Wallet Pack of 2 - Secure Crypto Wallet - Trusted Cold Storage for Bitcoin, Ethereum, NFT's &

Tangem Wallet Pack of 2 - Secure Crypto Wallet - Trusted Cold Storage for Bitcoin, Ethereum, NFT's &
Key item features Ultimate Security: Generates a private key that remains on the card, safeguarding crypto and NFTs from hackers with EAL6+ certification and audited firmware. Versatile Compatibility: Manages over 13,000 tokens across 70+ blockchains, supporting DeFi, NFTs, and DeEx without wires, Bluetooth, or USB. Effortless Operation: Utilizes NFC for secure transactions via a mobile device and the Tangem app, enabling buying and selling crypto with various payment methods. Smart Backup: Features a second Tangem Wallet as a backup, eliminating the need for paper, pictures, or seed phrases for recovery. Durable Design: Boasts IP68 protection against environmental conditions, ensuring longevity and robust physical security. Comprehensive Support: Compatible with Bitcoin, Ethereum, Solana, XRP, USDT, and over 6,000 cryptocurrencies, integrating with dApps and WalletConnect.

LBANK

LBANK

Security Of Public Bitcoin Nodes / Servers

I have been wondering about the security of using public bitcoin nodes with your wallet. E.g. sparrow wallet offers three connection options (public nodes, your own bitcoin core node or a private electrum server with bitcoin core) and the docs recommend to use your own bitcoin node / electrum server if you are storing larger sums.

I see the point that using your own node offers more privacy (which in turn can offer security in the sense that no one knows your addresses which could make you a target), however, I don't see how using a public server is inherently less secure from a cryptographic standpoint.

I mean, I am still signing my transactions with my private key. Sure, the public node could just not broadcast my transactions or even show incorrect balances to me but it cannot fake or alter my transactions.

Do I see something wrong here? Would be curious to hear in what way a public node could be problematic from a security standpoint. Is there some detailed guide explaining the possible attack vectors that a private node mitigates?



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