The Iranian source further said that the Islamic Republic negotiators are aware of the high risk and possibility of eavesdropping and spying, so always take precautionary measures.
The Moscow-based software security firm Kaspersky Lab ZAO found out that three hotels where Iranian diplomats had been staying during their visit to Austria and Switzerland for holding nuclear talks had been attacked by a computer virus, according to a report on June 10.
The virus had been used to penetrate desktop computers, elevator microphones, etc.
A version of Duqu, the virus had attacked the places days before Iranian diplomats were to arrive there.
Iranian embassies in Austria and Switzerland in letters to their host countries` foreign ministries conveyed the Islamic Republic`s concern about the issue.
The Iranian embassies writing the letters have called for thorough investigations into the case as well as taking stronger actions to make sure of the security of the places where Iranian negotiators are to stay from now on.
Earlier some Iranian media reported that Iran is studying to change the negotiations’ place to another country.
The Iranian diplomats have been visiting Vienna and Geneva to hold talks on Iran`s nuclear program with the group P5+1 (the US, UK, France, Russia, China and Germany).
The talks are expected to end in a comprehensive deal by the end of June.
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