A Russian security firm has presented evidence that the NSA has been secretly placing spyware on hard drives made by top manufacturers. Kaspersky Lab revealed that the spyware had been placed on personal computers in 30 countries including Iran, Russia, Pakistan, Afghanistan, China, Mali, Syria, Yemen and Algeria. The targets of the spying included government and military buildings, telecom companies, banks, nuclear research facilities, media companies and Islamic activists. Kaspersky was able to show how the spying programs could work on hard drives sold by Western Digital Corp, Seagate Technology Plc, Toshiba Corp, IBM, Micron Technology Inc and Samsung Electronics Co Ltd.