Some have been the victims family members, friends, and acquaintances.[8][9][31] Traffickers can be part of or aided by international criminal organizations, local gangs, or small crime rings or just be one person.[8] They operate clandestinely and sometimes lack coordinated structures that can be eradicated by authorities.[8] The majority of purchasers or consumers are men.[10][31] The encrypted nature of modern technology makes it difficult to track perpetrators.[34] They are motivated by greed and or sexual gratification.[11][12] Traffickers advertise children on the internet to obtain purchasers.[13] Funds acquired by cybersex traffickers can be laundered.[51]