2015. Turkey's regulator fined the company TRY 150,000 (US$51,000) for refusing to remove what it termed “terrorist propaganda” from the site; Pro-government trolls have escalated their campaigns to harass opposition voices and organizations on social media through smear campaigns and fake accounts; Journalists such as Hayri Tunç, , and received lengthy prison sentences for “insulting” public officials or spreading “terrorism propaganda”; A 14-day cyberattack brought almost 400,000 Turkish websites offline and temporarily suspended retail banking services in the country. The Freedom on the Net 2015 report, tracked that over 60,000 websites remain blocked in Turkey, and that TIB blocked 22,645 websites without prior court order only in 2014. Twitter was blocked for two weeks and YouTube for two months in 2014. On March 21, 2014, Twitter access for Turkish users was blocked for two weeks in the run-up to local elections to prevent a stream of leaked wiretapped recordings of senior officials that had appeared on the site, prompting Prime Minister Recep Tayyip Erdoğan to declare he would "root out" the network. In March 2014, Google claimed that Turkish ISPs had set up servers that were masquerading as Google's DNS, in order to block services such as YouTube and Twitter. In the 11th biannual transparency report published on September 19, 2017, Twitter said that Turkey was the first among countries where about 90 percent of removal requests came from. Also, Turkey has submitted the highest volume of removal requests to Twitter in 2014, 2015 and 2016. During the 2016–17 purges, the secure instant messaging app ByLock was accused by the Turkish government of being used primarily by members of the Gülen movement, which it classifies as a terrorist organization, during the failed coup. The government launched investigations of over 23,000 citizens for connections to Gülen, based solely on evidence that they had downloaded or used ByLock. Some of these investigations resulted in arrests and detainment. However, in December 2017, the government announced that it would investigate 11,480 phone numbers had been falsely accused of ties to ByLock and Gülen, after finding that the accusations were induced by unrelated apps embedding a web beacon pointing to the ByLock website from within. An arrest warrant was also issued against the developer of one of these apps. According to the decision published in the T.C. Resmî Gazete on 1 August 2019, online media service providers such as Netflix, BluTV and Puhutv, which broadcast