Yes, but the difference is that other parties I trust are subject to external verification and audit. If my bank steals my money, it will soon be discovered, either by me the next time I get my statement and it doesn't match my records, or by the bank auditors the next time they audit the books and discover that they don't balance. By way of contrast, if Apple sneaks a back door into a MacOS update it could easily go unnoticed for years.
Yes, but the difference is that other parties I trust are subject to external verification and audit. If my bank steals my money, it will soon be discovered, either by me the next time I get my statement and it doesn't match my records, or by the bank auditors the next time they audit the books and discover that they don't balance. By way of contrast, if Apple sneaks a back door into a MacOS update it could easily go unnoticed for years.