# Why this malicious behavior of corrupted sender isn't considered in malicious-secure OT?

I have read some oblivious transfer protocols, and I am confused about why they do not mention the malicious behavior that the corrupted sender may encrypt the wrong message $$x_0'$$ and $$x_1'$$ so that the honest receiver will receive the wrong result $$x_\sigma'$$. I think this totally breaks the correctness of OT and I don't know why the malicious secure OT protocol did not mention it. I know that the committed OT can prevent this behavior, but is this not a malicious behavior that one malicous-secure OT should consider?