Brifex.com is listed as a SCAM site in badbitcoin.org. Do not ever try to put in your hard-earned money. It was already reported that some users were not paid. It might happen to you if you ignore this warning.

Brifex.com WHOIS Registrar

Domain Name: BRIFEX.COM
Registrar WHOIS Server: whois.101domain.com
Registrar URL: https://www.101domain.com
Updated Date: 2016-07-15T11:32:55Z
Creation Date: 2016-01-02T12:09:31Z
Registrar Registration Expiration Date: 2019-01-02T12:09:31Z
Registrar: 101Domain GRS Ltd
Registrar IANA ID: 1011
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +1.7604448674
Domain Status: clientTransferProhibited http://www.icann.org/epp#clientTransferProhibited
Registrant Name: Private Registrant
Registrant Organization: Digital Privacy Corporation
Registrant Street:  3220 Executive Ridge Drive, Suite 101.
Registrant Street: C/O BRIFEX.COM
Registrant City: Vista
Registrant State/Province: CA
Registrant Postal Code: 92081
Registrant Country: US
Registrant Phone: +1.7604482392
Registrant Phone Ext: 
Registrant Fax: 
Registrant Fax Ext: 
Registrant Email: [email protected]

Anyone must be very careful in joining this kind of scheme. The internet nowadays is crowded with scam sites. High-yield investment (HYIP) is a kind of Ponzi scheme. It has an interest of 10-50% or sometimes doubled in a short period of time. The investor will only be paid when there are new members joined and invested.

People said, you have to understand the risk when you join a program like this. Invest only what you can afford to lose. However, my advise is to stop putting in your hard-earned money in any high yield investment company. I bet 99.9% HYIP are scam. Find something on the internet where you can make real money. They are hard to find, but they are real.