ive heard people say
So, literal hearsay.
its not perfect against if the signal servers where malicious (btw said servers are not open source).
The server is centralized so it’s irrelevant whether it’s open source or not, we have no means of checking.
$1 from the cia funding it is $1 too much.
Seems you’re referring to initial funding from the Open Technology Fund. That’s a US government body that promotes technologies that undermine authoritarian regimes. Signal fits the bill perfectly. In any case that was a decade ago. Since then there has been far more money from various do-gooding individuals and foundations. In particular the Freedom of the Press Foundation, which (I just checked) is vouched for by various whistleblowers including Edward Snowden. So, hardly a stooge of US imperialism.
The digital euro, as a digital central-bank currency, is the last thing we want from the perspective of privacy.