If you have an air-gapped computer, you probably think you're safe.  You may think that barring physical access to the machine, no hacker could possibly steal the data on that machine.  Unfortunately, you'd be incorrect.

Security researchers from the Ben Gurion University of the Negev, in Israel, have discovered a new way of stealing data using power lines.

Last year's Wannacry attack was bad, but in many ways, it was a self-inflicted wound.  According Webroot's recently published "Annual Threat Report," almost all of the machines that succumbed to the Wannacry attack were running Windows 7.  That attack is estimated to have caused in excess of $4 billion in total losses.