Scared of Storing My BTC in a Cold Wallet—Need Advice

Hey everyone,

I’ve saved enough to buy 0.3 BTC, which is a huge deal for me—it’s basically my family life savings. I’m planning to store it in a cold wallet like Trezor, but I’m honestly nervous after reading so many stories of people getting hacked or losing their funds without knowing how.

Here’s my plan with trezor one:

  1. Memorize the seed phrase and never store it online.
  2. Always double-check the recipient address using the wallet’s screen before sending anything.

Still, I have some worries:

  1. How can a cold wallet even be hacked if the seed phrase is offline and private keys stay in the device?
  2. Could a hacker manipulate the transaction during the process, like change recipient wallet in the backend process even if I’ve double-checked the address?
  3. Is there anything else I should watch out for? if it's that risky i was planning to store it just in the exchange