NSA is over authority.
The Russian anti-virus software Kaspersky of the confrontation seems to be the safest. It is ironic.
Symantec , Norton , Trend Micro , PC Matic , Sourcenext and Etc. Mr. Nguia Hoang Pho(67) could not believe these. I think that he used KASPERSKY to protect himself from his country. KASPERSKY is the most reliable because it protects you from your country.