What does it take to execute a successful spam operation peddling diet pills of questionable effectiveness? For one spammer, it took some 750,000 fake Twitter accounts.
Symantec researchers first spotted the campaign - peddling Green Coffee Bean Extract, a supposedly miraculous diet supplement - in July 2014. Later they discovered that the same spammer has been using this approach since the beginning of the year.
With small variations, the tweets looked similar to this one: