Iranian hackers have hit hundreds of companies over the past two years

Cyber ​​attacks on Iranian hackers have targeted thousands of people on more than 200 companies over the past two years, said Microsoft Corp., part of a wave of data presses from the country that scientists say have hit businesses and public entities around the globe.

The campaign, whose scope was not previously reported, stole business secrets and deleted data from computers. It caused damage to hundreds of millions of dollars in lost productivity and affected oil and gas companies, heavy machinery …