• HF's main source of income comes from selling collected data
• HF contains a process logger
• HF receives government requests for your information
• HF contains features which allow integration with other spyware platforms
• HF confirms that it collects large amounts of sensitive user data
• HF does not make its source code available
HF explicitly confirms in its privacy policy[1] that it collects the following information:
IP Address
Device UUID
User's e-mail address
All text messages
All images
All VOIP data (voice chat)
Open rates for e-mail sent by HF
*All of this information is literally embedded within their TOS, but more info on a free hosted website here, with citations:
Spyware Watchdog