What is STUXNET?? It could be the reason for WW3??

STUXNET is a malicious computer worm, first uncovered in 2010, thought to have been in development since at least 2005. Stuxnet targets supervisory control and data acquisition (SCDCA) systems and is believed to be responsible for causing substantial damage to the nuclear program of IRAN Although neither country has openly admitted responsibility, the worm is widely understood to be a cyberweapon built jointly by the United States and Israel.

Stuxnet reportedly destroyed numerous centrifuges in Iran’s Natanz uranium enrichment facility by causing them to burn themselves out. Over time, other groups modified the virus to target facilities including water treatment plants, power plants, and gas lines.

Recognition of such threats exploded in June 2010 with the discovery of Stuxnet, a 500-kilobyte computer worm that infected the software of at least 14 industrial sites in Iran, including a uranium-enrichment plant. Although a computer virus relies on an unwitting victim to install it, a worm spreads on its own, often over a computer network

The first five STUXNET victims were Iranian industrial automation  companies.

Later it solved by Kaspersky Lab.

It was a Digital Epidemic.