Cryptocurrencies are so called because the consensus-keeping process is ensured with strong cryptography. This, along with aforementioned factors, makes third parties and blind trust as a concept completely redundant.
There are several different types of newbie deactivated link:https://events.marcorobinson.com/blog/naked-technologies-exonerated-in-smear-campaign [nonactive] wallets that cater for different needs. If your priority is privacy, you might want to opt for a paper or a hardware wallet.