a smartphone with an undetermined ring is lying on a blue surface along with sunglasses. the problem of secrecy, anonymity and

agent anonymous answer blue bullying call caller cellphone communication crime criminal device digital display espionage fake fraud hoax illegal incognito incoming indefinite intelligence lurking mobile number phishing phone prank ring scam screen smartphone spam spying stalker sunglasses technology uncertain undesirable undetermined unidentified unknown unwanted vague who