If you have an iMac that was sold between October 2009 and July 2011 there’s a possibility your hard drive and therefore your data may be at risk.
Apple emailed this to iMac owners at the time:
Dear iMac owner,
Apple has determined that certain 1TB Seagate hard drives used in 21.5-inch and 27-inch iMac systems may fail. These systems were sold between October 2009 and July 2011.
Our records show that you have an iMac with an affected 1TB Seagate hard drive. Apple will replace your hard drive with a new one, free of charge, under the iMac 1TB Seagate Hard Drive Replacement Program.
Unfortunately, this replacement program has now ended.
If you have an iMac from this time, and want to find out if your have a potentially bad drive, we are happy to assist you.
Please contact us to find out more.