Really? This must be stickied and everyone must be alerted. We do not want the community affected badly by this.

Could it be that this is also connected to bitcoin.org's warning? I speculate there is a serious attack versus cryptocurrencies. This is the warning on bitcoin.org

"Bitcoin.org has reason to suspect that the binaries for the upcoming Bitcoin Core release will likely be targeted by state sponsored attackers. As a website, Bitcoin.org does not have the technical resources to guarantee that we can defend ourselves from attackers of this calibre. We ask the Bitcoin community, and in particular the Chinese Bitcoin community to be extra vigilant when downloading binaries from our website."

https://bitcoin.org/en/alert/2016-08-17-binary-safety