Jerusalem Post 
October 17, 2013
Turkey disclosed to Iranian intelligence the identity of up to ten Iranians who were allegedly spying on Tehran for Israel, journalist David Ignatius wrote in a column published in The Washington Post  on Thursday.
According to Ignatius, Ankara’s decision to expose the alleged Mossad informants came early last year as Turkish-Israeli relations continued to deteriorate following the 2010 Mavi Marmara incident.
Ignatius cites sources as saying the Turkish action was a “significant” loss of intelligence for Israel, and “an effort to slap the Israelis.”
According to Ignatius, the Mossad was running part of its Iranian spy network through Turkey. The Turkish intelligence conducts aggressive surveillance inside its borders, which enabled it to monitor covert Israeli-Iranian meetings.