Reverse Osmosis System PLC Attacked
- Event Year
- 2002
- Reliability
- Likely But Unconfirmed
- Country
- United States
- Industry
- Electronic Manufacturing
Description
A PLC operating a reverse osmosis system for water purification in a semiconductor manufacturing plant was attacked and disabled by unknown Internet hackers. The PLC was improperly protected as it was connected to a LAN directly accessable to the Internet
Impact
Loss of the reverse osmosis water system for several hours, but no economic loss as there was sufficient backup water.