Not safe.

UC) still lacks strict security protection. The inability of enterprise security systems to identify internal threats is the biggest hidden danger. UC has gradually become a new way for hackers to attack. What's even more worrying is that most enterprises don't think about protecting their UC deployments.

UC Chat is Sina's chat software. Similar to QQ and MSN, it is an instant messaging software controlled by Sina. Similar to QQ, it was originally launched by Guizhou Langma Company and was later acquired by Sina.com.