What does ValidateAntiForgeryToken protect against?
PICTURE THIS: A SENTENCE BECOMES TOKENS
The model does not read letters like humans. It reads these pieces, then predicts the next one.
Simple meaning
It blocks CSRF on cookie-authenticated POSTs by requiring a token.
WHY — Forms instead of guessing?
Why interviewers care about Forms:
who only read docs from people who shipped.
and tied to .NET MVC work.
Name the idea, why it exists, then one short example.
End with when you use it and one common pitfall.
STEPS — What happens with tokens?
Before the model can read a sentence, it goes through these steps:
- 1It blocks CSRF on
cookie-authenticated POSTs by requiring a token.
- 2Token IDs
I pair it with [HttpPost].
- 3APIs using bearer tokens
need a different CSRF story.
- 4Context mix
Attention looks at nearby tokens together.
- 5Next token
The model scores what should come next.
- 6Decode
IDs turn back into readable text.
EXAMPLE — See it in action
Let's see how a real sentence is tokenized (tokens may vary by model):
Note: Actual tokens and IDs depend on the tokenizer (e.g., GPT, Llama, etc.).
Key takeaway
It blocks CSRF on cookie-authenticated POSTs by requiring a token. I pair it with [HttpPost].