Back in December of 2011 Russia's political twitters were speaking about the event that happened at Moscow's Triumphal Square. About 50,000 poeople gathered to protest the ballot-rigged election. As the tweets began to roll out the bots were used to block out any negative comments or tweet a positive comment. The bots targeted anyone speaking on the Triumphal Square and Pro-Kremin messages.
The BBC News quoted Maxim Goncharov the senior threat reaseacher of the security intelleigence blog:
"Mr Goncharov said the machines, or bots, in this network had targeted chatter about the protests in Moscow's Triumphal Square. The protests followed accusations about irregularities during Russia's recent parliamentary elections. Some of the chatter on Twitter was organised around the topic name, or hashtag, of #triumphalnaya."
The bots were being used as a away of limiting the freedom of speech in Russia. In the past Twitter's hashtags was used to speak about a specific topic. The hashtag #triumphalnaya means is a place to meet. The protesters used this hashtag to speak about the rigged election and the same way the bots were able to block any negative tweets by looking for this hastag.
In article "The Dark side of social media" Mr. Goncharov said:
"On December 6 2011, a number of pro-Kremlin activists launched an attack on Twitter using bots which posted messages with a hashtag #триумфальная (Triumfalnaya). These bots posted a range of national slogans and crude language. With a rate of up to 10 messages per second, these bots succeeded in blocking the actual message feed with that hashtag."
The bots' mission was successful because the words were blocked out or drowned out. This created an uproar in the country and part of Twitter world was involved. This is an example of the bots blocking the message on Twitter.