During his recent interaction with Israeli Prime Minister Benjamin Netanyahu, Musk said that making the platform paid was the best way to deal with bot armies.
His legal team subpoenaed two ad tech firms Integral Ad Science (IAS) and DoubleVerify to provide documents or communications regarding the audit of the user base on the platform, the media reports said.
Musk had put the $44 billion Twitter deal on hold temporarily over pending details supporting the calculation that spam and fake accounts represent less than 5 per cent of users.