[Grammar] You can't trust all of them -> Is it partial negation or complete negation?

[wotcha]

"You can't trust all of them"

Is this sentence a partial negation or a complete negation?

 

[emsr2d2]

"You can't trust all of them"

Is this sentence a partial negation or a complete negation?

You can't trust all of them = You can trust some of them = You should distrust all of them.
You can't trust any of them = They are all untrustworthy.