I think placing trust in technology is misguided. Bad actors will always figure out a way to abuse the machines.

What we can do is place trust in particular institutions, and use technology to verify authenticity. Not verify that what the institution is saying is true, but verify that they really are standing by this claim.

This is challenging because no institution is going to be 100% trustworthy all of the time in perpetuity. But you can make reasonable assessments about which institutions appear more credible. Then it's a matter of policing your own biases.