my imac cant reinstal

[coffin]

so yesterday at midnight indonesian time i got email from apple that my apple id was reset
i was away from my imac, i was in office with android phone and my imac at home

so then i reset my apple id password from my phone, but after that i got new email that tell me my apple id was used to sign in to icloud via web browser. i run the reset password again, and press the reset password link in the email apple sent me

after that i got new email telling me that my apple id's information has been updated with rescue email address which is i'm not make it
since that i cannot log in to my apple id, all the password combination i try but failed, and everytime i try to reset my apple id then the email was sent to rescue email which i dont know whose email is that

at the morning i get new email of find my iphone, then i got new email again that the rescue email is updated again

back to home at 8 AM i try to turn on my imac and lock code screen show up, i dont know what is the code since i never set any, i try several code i ussually use but nothing work,
new email come telling me that my imac is erasing proccess is started

and now, my imac screen only show macOs utility page which contain 4 option, time machine recovery which i dont have any backup,
second are reinstall macOs, i try it and no hard drive showing up except locked recovery hd, but in disk utility option i can find my hd
so i cant reinstall my imac

can somebody please help with this issue?
thanks in advance

 

[SaSaSushi]

It sounds to me like you were the victim of a phishing attack.

If you cannot reset/unlock the account, you can try to contact Apple Support.

As for reinstalling macOS, you could try to create a USB installer if you have access to another Mac.

In future, I highly recommend ignoring (and marking as junk) any mail you receive advising you that your Apple ID was reset if you didn't do it yourself.

Backing up your data is also essential in this day and age.

 

[coffin]

i have contact apple suppport through phone, we talk for 42 minutes and no clue how to restore my imac

i dont have access to another mac

 

[AZhappyjack]

And if you get back into your AppleID, it's time to enable the two factor authentication... it will help prevent this situation in the future.

 

[coffin]

i dont have another apple product, only this mac
badly, after losing my apple id password, i forgot the answer to the security question

is there any way i can reset my apple id and delete that unknown rescue email?

 

[SaSaSushi]

i dont have another apple product, only this mac
badly, after losing my apple id password, i forgot the answer to the security question

is there any way i can reset my apple id and delete that unknown rescue email?

You can delete the email anytime but if you can't remember the answer to your security question there may be nothing you can do short of creating a new Apple ID.

Is there an Apple Store nearby? I know there is at least one Apple Store in Indonesia (several in Jakarta). You could probably at least get help with the USB installation disc there.

 

[DeltaMac]

Unfortunately, there are some effective techniques out there to derail (take over) your AppleID account, and that's likely what happened to you

You must call AppleCare support again. They are your only hope to get this cleared up.
Be prepared to prove your are the owner of your Mac. Part of that will be responding correctly to the security questions.
You will also likely have to convince Apple that the email that is now registered to your AppleID is unknown to you.
Support MAY be able to reset your AppleID, but you will also likely have to jump through a few hoops to get there.

 

[coffin]

jakarta is 10 hours away from my small town, and no apple store here

is there any way i can use terminal to make my hard drive show in mac os reinstallation page?
[doublepost=1501985219][/doublepost]

Unfortunately, there are some effective techniques out there to derail (take over) your AppleID account, and that's likely what happened to you

You must call AppleCare support again. They are your only hope to get this cleared up.
Be prepared to prove your are the owner of your Mac. Part of that will be responding correctly to the security questions.
You will also likely have to convince Apple that the email that is now registered to your AppleID is unknown to you.
Support MAY be able to reset your AppleID, but you will also likely have to jump through a few hoops to get there.

i have ask them to give an email where i can upload the screenshot of my email, but they only give me no reply email support

i also have give them serial number of my imac and tell them that i bought second hand imac

there are nothing in my apple id, so its oke if it is gone, i can make new one

but i need to reinstall my mac so i can work again and hopefully regain my photo in picture folder

 

[DeltaMac]

Call

AppleCare

again.

You do need reinstall media (USB flash drive is the best)
You may find out that the hard drive has been securely encrypted. That will be a no-hope situation for you, other than replacing the hard drive. You will lose everything on the drive, if you need to do that.
If the hackers have added a firmware password to your iMac, then that makes things even worse.

Can you tell us which iMac you have?

 

[Weaselboy]

back to home at 8 AM i try to turn on my imac and lock code screen show up

Are you getting this asking for either a four or six digit PIN? If you are, whoever hijacked your AppleID has remote locked your iMac and nothing you can do will fix it. You are going to need to take it to an Apple Store with proof you own the iMac, and Apple can remove it for you.

 

[coffin]

Are you getting this asking for either a four or six digit PIN? If you are, whoever hijacked your AppleID has remote locked your iMac and nothing you can do will fix it. You are going to need to take it to an Apple Store with proof you own the iMac, and Apple can remove it for you.

View attachment 711798

yes I got this asking page, I try to enter several number and luckyly it works,

now I have reinstall my iMac using flash drive, but new problem is I can see my internal drive in finder
I try to run diskutil from terminal and its still read my internal Macintosh hd,
I try disk utility and run first aid to my internal drive, it say my drive are corrupted but doing nothing to fix

is there any way I can access my internal drive without pulling it off from Mac?
[doublepost=1502069080][/doublepost]

Call

AppleCare

again.

You do need reinstall media (USB flash drive is the best)
You may find out that the hard drive has been securely encrypted. That will be a no-hope situation for you, other than replacing the hard drive. You will lose everything on the drive, if you need to do that.
If the hackers have added a firmware password to your iMac, then that makes things even worse.

Can you tell us which iMac you have?

I use iMac 21.5 inch of 2015

 

[DeltaMac]

Boot to your recovery partition:
Restart while holding Command-R
Run Disk Utility from the window. Choose your hard drive, then try to Repair (First Aid)
And, then try to Reinstall macOS (which will be one of the other choices in the first window after you Quit Disk Utility.