Popular Mechanics
Kyle Mizokami
Mar. 22, 2017
An Iranian government official claimed earlier this week that its Russian-made air defenses were compromised by Moscow, leaving Iran and its allies defenseless against Israeli airstrikes. An engineer with Tehran's Ministry of Defense alleged that codes forcing anti-aircraft missiles to treat hostile Israeli fighters as friendly were sold to Tel Aviv, effectively neutralizing Syria and Iran's S-300 surface-to-air missile systems.
An Iranian official, described by the Jerusalem Post as a senior member of Iran's Defense Ministry, told the Kuwaiti newspaper Al-Jarida that Russia had sold "codes" to Israel that identified Israeli aircraft as friendly. The codes were used by Israel to prevent its aircraft from being targeted. Israel has flown dozens of air raids over Syria, and despite advanced air defenses, only the latest raid, flown last Friday, involved an actual missile launch.
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http://www.popularmechanics.com/military/weapons/a25779/iran-complains-russia-sold-out-its-air-defenses-to-israel/