Has QQ been secretly scanning users' privacy?

According to a report on the 27th, Tencent released a statement in response to netizens' doubts about whether QQ chat software spies on user privacy. In this statement, Tencent directly admitted that its QQ chat software scans users' computer hard drives, but vaguely claimed that the purpose is "to protect the security of QQ users' computers and improve the online environment for QQ users."

Leaving aside this unconvincing so-called statement, we can conduct experiments to see if Tencent's QQ chat software can really protect the security of QQ users?