Tags SIM Hijacking
Twitter, tightening security, stops requiring phone numbers for authentication
The move comes after hackers infiltrated Twitter CEO Jack Dorey's account.
Alleged SIM-swappers charged in $550,000 cryptocurrency scam
They also threatened victims' families, according to an indictment.
Hackers allegedly stole $2.4 million in cryptocurrency in a six-month SIM hijacking spree
The six men were paying off mobile phone customer service representatives for access to victim's phone numbers.