Lately the account robbery is taking place more in steenit. This I do to be sure
For starters, using Vessel to make transfers is the best option. It is a wallet that made (top witness) very safe and reliable. Here put only the active key when you import your account.
1. Just login to steemit with the posting key in the browser you use. Never log in with the owner key.
2.Change the owner key and save it on physical paper
3. Never give your password to strangers or send it by a partner
4. Never open links of unknown suspects in the comments either. I never open a link sent to me
get advice so they get old, with those tips it's hard to steal your account