A man discarded a hard drive in 2013 that contained 7,500 bitcoins which are now worth over £4 million. The man, James Howells, "mined" the bitcoins in 2009 when they were worthless but failed to back up the drive. He has been unable to retrieve the drive from the landfill where it was thrown out. The story demonstrates the importance of backing up important data to avoid losing potentially valuable information if hardware is damaged or lost.