Anyway, back to the seed phrase where 24 words is much safer but still it is possible to lose money if ever a person is able to know the words then he/she will be able to take it out of the wallet. Losing money is not all about brute force but scammer find a way to steal your wallet seed phrase. It is all up to the owner to keep the wallet safe.
12 words and 24 words have marginal difference in security increment. I wouldn't call it much safer by any regard. 12 words seed phrases are easier to keep than a 24 words seed phrase and hence a better option.