"Facebook hack notification Alomertim: Was on Facebook and a notification box popped up saying it was Apple and the my iPhone has been hacked and I had less than 2 minutes to respond or such and such. I took screen shots. I also immediately reported it to FB. What do I need to do?"
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Troubleshooting Facebook Message:
That is a scam. Your Mac wouldn't be hacked. So, what seems to have occurred here is a scam. So, you have a few things to do here:
Report this Message and Secure your Info:
Being account accessibility is of big concern here, (I.)report this message, and (II.)secure your account.
I. Report this Message:
So, report phone call's and messages info to Apple and others (such as your government). Use my User: Using the Photos App to Report Scams - User Tip
and...
II. Secure your Info:
A. Verify your Devices:
Verify that all devices are logged in to your account, by using this link: Check your Apple ID Device List to See where you're Signed in - Apple Support
then...
B. Modify your Credentials:
Having received this, someone may have your credentials. So, by all means, consider modifying them...