> The solution is to not use email.

and use what? instant message? few things lack legitimacy more than an instant message asking you to do something.

Links in email are much more of a problem than email itself. So tempting to click. It's right there, you don't have to dig through bookmarks, you don't have to remember anything, just click. A link is seductive.

the actual solution is to avoid dependencies whenever possible, so that you can review them when they change. You depend on them. You ARE reviewing them, right? Fewer things to depend on is better than more, and NPM is very much an ecosystem where one is encouraged to depend on others as much as possible.