But some words might not have good synonyms that fit. For example, "immediately" is an adverb. Need to find three suitable synonyms. Also, ensure that the formatting is correct, like b, and that there are no markdown elements. The user specified text only, so no markdown.
This seems manageable, but it's going to take time. I need to make sure not to miss any words and to keep the proper nouns intact. Also, check for any possible errors in the substitution, like context where a synonym might not fit. For example, "password" might have alternatives like "passcodea, security codeb, login keyc". Zombotron 1 Hacked
Next, "Make sure to use a strong, unique password that you don't use on any other platforms." The word "ensure" could be an alternative for "make sure", so "Ensurea, Confirmb, Guaranteec". But some words might not have good synonyms that fit