How to keep your Facebook Business Manager secure?

We've all heard the horror stories of businesses losing thousands of dollars in ad spend due to a hacked Facebook Business Manager. The bad guys are getting smarter and more sophisticated, so you need to be on guard! If your Business Manager is hacked, it can take days or even weeks for Facebook to get things back up and running again. Your business will lose money during this time because no ads will run until your Business Manager is restored! You don't want that happening, do you? 
Here are 6 steps I recommend taking right away to protect your account from being compromised by hackers or disabled by Facebook due to a lack of security measures in place.
1)Do not use fake accounts. You should only have one account under your legal name. Facebook might ask you to prove your identity by asking you to upload your ID so make sure you use your legal name. Do not share your log in details with anyone else or ask anyone to log in to your account as yourself. Make sure no one in your Business Manager has a fake account.
2)Add a backup admin on your page in case you get locked out of your account for any reason. Make sure this person is someone who could be trusted and knows what they're doing!
3)Make sure you use strong passwords and enable two-factor authentication which will require you to enter an additional code sent via text message or email in order to log in from another device such as your laptop or tablet. Make sure you have a good password recovery strategy in place to get back into your account if needed.
4)If you're working with an agency/freelancer, give them Partner access. Make sure all admins have two-factor authentication and remove anyone who no longer needs access.
5)Always use the latest version of Facebook Business Manager on your mobile devices to ensure that you are protected against any security vulnerabilities.
6)Make sure you comply with Facebook's Commerce and Advertising Policies. If you are publishing ads that fall into the Special Ads Category, make sure you are aware of the stricter rules. If you repeatedly violate Facebook's policies, you might get your ad account or Business Manager disabled. Monitor Account Quality and Account Status inside Business Manager and resolve any issues that may come up. 
Protecting a Facebook business manager is not complicated but it needs constant attention in order to ensure that the account remains safe and secure. Remember that even just one weak link could cause serious problems for you down the line.