In April, 2014 Instagram sent a notice about policy violations to Rihanna telling her that if she would not stop violating the anti-nude policy of the website, her account could be blocked. Rihanna responded to this notice by uploading her pics from the nude photo session for Lui magazine. The next day Riri’s fans discovered that her page was leading to a “page not found” sign.
However, the account was reactivated after several days. After this block, Rihanna switched to Twitter for the purposes of uploading her provocative pics.