Humans are vulnerable to scams, cons, phishing and social engineering. This is a vulnerability whose root cause we not know how to fix. We can only alleviate its effects by re-engineering the environment around those vulnerable humans.

LLMs are just as gullible, we just tend to call their vulnerabilities "prompt injection", even though it's basically the same class of attack under the hood. Unlike humans, though, LLMs are a lot less diverse (you and I are using the same Opus 5.5, but we have different brains). This makes attacks on LLMs much more predictable and easier to pull off, just as a phishing campaign that targets one specific person is easier than an attack that scales to millions of diverse victims.

In the age of agents, phishing will continue to be the biggest attack vector of all, it's just the victims that will change.