This is full of terrible advice. Password rotation is an outdated practice.
Don’t ever reuse passwords with “zones”, just use a password manager to generate long and secure passwords for every account. Then enable MFA wherever possible, and Passkeys where they have been implemented.
Then have a recovery method for the password manager stored in a secure place.
Do yourself a favor and throw out all other food ad well, unless it’s completely sealed off. Their eggs take a while to hatch, so you don’t want to see them pop up again in a month.
Then clean the entire kitchen with a spray of vinegar and water. Pay extra attention to corners, crevices, and places like screws. Their eggs are tiny.
You can also get a pheromone trap to avoid them spreading further.